77257416 has 32 divisors (see below), whose sum is σ = 195024960. Its totient is φ = 25501632.

The previous prime is 77257409. The next prime is 77257417. The reversal of 77257416 is 61475277.

It is not an unprimeable number, because it can be changed into a prime (77257417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13155 + ... + 18098.

It is an arithmetic number, because the mean of its divisors is an integer number (6094530).

Almost surely, 2^77257416 is an apocalyptic number.

It is an amenable number.

77257416 is an abundant number, since it is smaller than the sum of its proper divisors (117767544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77257416 is a wasteful number, since it uses less digits than its factorization.

77257416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31365 (or 31361 counting only the distinct ones).

The product of its digits is 82320, while the sum is 39.

The square root of 77257416 is about 8789.6197869988. The cubic root of 77257416 is about 425.9056415580.

The spelling of 77257416 in words is "seventy-seven million, two hundred fifty-seven thousand, four hundred sixteen".