76321616 has 40 divisors (see below), whose sum is σ = 172459200. Its totient is φ = 32706912.

The previous prime is 76321601. The next prime is 76321621. The reversal of 76321616 is 61612367.

It is a super-3 number, since 3×76321616³ (a number of 25 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1466 + ... + 12441.

It is an arithmetic number, because the mean of its divisors is an integer number (4311480).

Almost surely, 2^76321616 is an apocalyptic number.

It is an amenable number.

76321616 is an abundant number, since it is smaller than the sum of its proper divisors (96137584).

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

76321616 is a wasteful number, since it uses less digits than its factorization.

76321616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13936 (or 13916 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 76321616 is about 8736.2243560934. The cubic root of 76321616 is about 424.1790213532.

The spelling of 76321616 in words is "seventy-six million, three hundred twenty-one thousand, six hundred sixteen".