77076538 has 64 divisors (see below), whose sum is σ = 155520000. Its totient is φ = 27728640.

The previous prime is 77076533. The next prime is 77076553. The reversal of 77076538 is 83567077.

It is a junction number, because it is equal to n+sod(n) for n = 77076494 and 77076503.

It is not an unprimeable number, because it can be changed into a prime (77076533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154213 + ... + 154711.

It is an arithmetic number, because the mean of its divisors is an integer number (2430000).

Almost surely, 2^77076538 is an apocalyptic number.

77076538 is an abundant number, since it is smaller than the sum of its proper divisors (78443462).

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

77076538 is a wasteful number, since it uses less digits than its factorization.

77076538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 77076538 is about 8779.3244614834. The cubic root of 77076538 is about 425.5729996639.

The spelling of 77076538 in words is "seventy-seven million, seventy-six thousand, five hundred thirty-eight".