77608016 has 10 divisors (see below), whose sum is σ = 150365562. Its totient is φ = 38804000.

The previous prime is 77608007. The next prime is 77608019. The reversal of 77608016 is 61080677.

It can be written as a sum of positive squares in only one way, i.e., 72318016 + 5290000 = 8504^2 + 2300^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77608019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2425235 + ... + 2425266.

Almost surely, 2^77608016 is an apocalyptic number.

It is an amenable number.

77608016 is a deficient number, since it is larger than the sum of its proper divisors (72757546).

77608016 is a wasteful number, since it uses less digits than its factorization.

77608016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850509 (or 4850503 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 77608016 is about 8809.5411912312. The cubic root of 77608016 is about 426.5489334448.

The spelling of 77608016 in words is "seventy-seven million, six hundred eight thousand, sixteen".