77496957 has 12 divisors (see below), whose sum is σ = 113611680. Its totient is φ = 50893128.

The previous prime is 77496949. The next prime is 77496989. The reversal of 77496957 is 75969477.

It is a happy number.

It is not a de Polignac number, because 77496957 - 2³ = 77496949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77496917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63657 + ... + 64862.

It is an arithmetic number, because the mean of its divisors is an integer number (9467640).

Almost surely, 2^77496957 is an apocalyptic number.

It is an amenable number.

77496957 is a deficient number, since it is larger than the sum of its proper divisors (36114723).

77496957 is a wasteful number, since it uses less digits than its factorization.

77496957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128592 (or 128589 counting only the distinct ones).

The product of its digits is 3333960, while the sum is 54.

The square root of 77496957 is about 8803.2355983468. The cubic root of 77496957 is about 426.3453689365.

It can be divided in two parts, 7749 and 6957, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 77496957 in words is "seventy-seven million, four hundred ninety-six thousand, nine hundred fifty-seven".