2077597457 has 4 divisors (see below), whose sum is σ = 2237412660. Its totient is φ = 1917782256.

The previous prime is 2077597433. The next prime is 2077597481. The reversal of 2077597457 is 7547957702.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2077597433) and next prime (2077597481).

It can be written as a sum of positive squares in 2 ways, for example, as 110586256 + 1967011201 = 10516^2 + 44351^2 .

It is not a de Polignac number, because 2077597457 - 2⁶ = 2077597393 is a prime.

It is a super-2 number, since 2×2077597457² = 8632822386665733698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2077597399 and 2077597408.

It is not an unprimeable number, because it can be changed into a prime (2077597757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79907582 + ... + 79907607.

It is an arithmetic number, because the mean of its divisors is an integer number (559353165).

Almost surely, 2^2077597457 is an apocalyptic number.

It is an amenable number.

2077597457 is a deficient number, since it is larger than the sum of its proper divisors (159815203).

2077597457 is a wasteful number, since it uses less digits than its factorization.

2077597457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159815202.

The product of its (nonzero) digits is 4321800, while the sum is 53.

The square root of 2077597457 is about 45580.6697734906. The cubic root of 2077597457 is about 1276.0091883344.

The spelling of 2077597457 in words is "two billion, seventy-seven million, five hundred ninety-seven thousand, four hundred fifty-seven".