770127481 has 4 divisors (see below), whose sum is σ = 772334500. Its totient is φ = 767920464.

The previous prime is 770127473. The next prime is 770127493. The reversal of 770127481 is 184721077.

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

It can be written as a sum of positive squares in 2 ways, for example, as 704371600 + 65755881 = 26540^2 + 8109^2 .

It is a cyclic number.

It is not a de Polignac number, because 770127481 - 2³ = 770127473 is a prime.

It is a super-2 number, since 2×770127481² = 1186192673982810722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 770127481.

It is not an unprimeable number, because it can be changed into a prime (770127581) 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, 1102986 + ... + 1103683.

It is an arithmetic number, because the mean of its divisors is an integer number (193083625).

Almost surely, 2^770127481 is an apocalyptic number.

It is an amenable number.

770127481 is a deficient number, since it is larger than the sum of its proper divisors (2207019).

770127481 is a wasteful number, since it uses less digits than its factorization.

770127481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207018.

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 770127481 is about 27751.1708041300. The cubic root of 770127481 is about 916.6162247652.

The spelling of 770127481 in words is "seven hundred seventy million, one hundred twenty-seven thousand, four hundred eighty-one".