80997385 has 16 divisors (see below), whose sum is σ = 111888000. Its totient is φ = 55138176.

The previous prime is 80997373. The next prime is 80997419. The reversal of 80997385 is 58379908.

It is a cyclic number.

It is not a de Polignac number, because 80997385 - 2⁹ = 80996873 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3460 + ... + 13189.

It is an arithmetic number, because the mean of its divisors is an integer number (6993000).

Almost surely, 2^80997385 is an apocalyptic number.

It is an amenable number.

80997385 is a deficient number, since it is larger than the sum of its proper divisors (30890615).

80997385 is a wasteful number, since it uses less digits than its factorization.

80997385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16800.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 80997385 is about 8999.8547210497. The cubic root of 80997385 is about 432.6702148907.

The spelling of 80997385 in words is "eighty million, nine hundred ninety-seven thousand, three hundred eighty-five".