77516329 has 8 divisors (see below), whose sum is σ = 84807072. Its totient is φ = 70266240.

The previous prime is 77516323. The next prime is 77516339. The reversal of 77516329 is 92361577.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77516329 - 2³ = 77516321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77516291 and 77516300.

It is not an unprimeable number, because it can be changed into a prime (77516321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6099 + ... + 13864.

It is an arithmetic number, because the mean of its divisors is an integer number (10600884).

Almost surely, 2^77516329 is an apocalyptic number.

It is an amenable number.

77516329 is a deficient number, since it is larger than the sum of its proper divisors (7290743).

77516329 is a wasteful number, since it uses less digits than its factorization.

77516329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20327.

The product of its digits is 79380, while the sum is 40.

The square root of 77516329 is about 8804.3358068624. The cubic root of 77516329 is about 426.3808906512.

The spelling of 77516329 in words is "seventy-seven million, five hundred sixteen thousand, three hundred twenty-nine".