2077457 has 4 divisors (see below), whose sum is σ = 2081460. Its totient is φ = 2073456.

The previous prime is 2077409. The next prime is 2077483. The reversal of 2077457 is 7547702.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7547702 = 2 ⋅3773851.

It can be written as a sum of positive squares in 2 ways, for example, as 919681 + 1157776 = 959^2 + 1076^2 .

It is a cyclic number.

It is not a de Polignac number, because 2077457 - 2¹⁰ = 2076433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2071457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082 + ... + 2307.

It is an arithmetic number, because the mean of its divisors is an integer number (520365).

2^2077457 is an apocalyptic number.

It is an amenable number.

2077457 is a deficient number, since it is larger than the sum of its proper divisors (4003).

2077457 is an equidigital number, since it uses as much as digits as its factorization.

2077457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002.

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 2077457 is about 1441.3386139280. The cubic root of 2077457 is about 127.5980432610.

It can be divided in two parts, 20 and 77457, that added together give a palindrome (77477).

The spelling of 2077457 in words is "two million, seventy-seven thousand, four hundred fifty-seven".