80617984 has 20 divisors (see below), whose sum is σ = 161079534. Its totient is φ = 40308736.

The previous prime is 80617981. The next prime is 80617987. The reversal of 80617984 is 48971608.

It is an interprime number because it is at equal distance from previous prime (80617981) and next prime (80617987).

It can be written as a sum of positive squares in only one way, i.e., 78854400 + 1763584 = 8880^2 + 1328^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80617984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80617981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78217 + ... + 79240.

Almost surely, 2^80617984 is an apocalyptic number.

It is an amenable number.

80617984 is a deficient number, since it is larger than the sum of its proper divisors (80461550).

80617984 is an equidigital number, since it uses as much as digits as its factorization.

80617984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157475 (or 157459 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 80617984 is about 8978.7518063481. The cubic root of 80617984 is about 431.9935984419.

The spelling of 80617984 in words is "eighty million, six hundred seventeen thousand, nine hundred eighty-four".