80697516 has 12 divisors (see below), whose sum is σ = 188294232. Its totient is φ = 26899168.

The previous prime is 80697509. The next prime is 80697527. The reversal of 80697516 is 61579608.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3362385 + ... + 3362408.

It is an arithmetic number, because the mean of its divisors is an integer number (15691186).

Almost surely, 2^80697516 is an apocalyptic number.

It is an amenable number.

80697516 is an abundant number, since it is smaller than the sum of its proper divisors (107596716).

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

80697516 is a wasteful number, since it uses less digits than its factorization.

80697516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724800 (or 6724798 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 80697516 is about 8983.1796152587. The cubic root of 80697516 is about 432.1356098609.

The spelling of 80697516 in words is "eighty million, six hundred ninety-seven thousand, five hundred sixteen".