80975686 has 16 divisors (see below), whose sum is σ = 138267648. Its totient is φ = 35206600.

The previous prime is 80975683. The next prime is 80975707. The reversal of 80975686 is 68657908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80975683) 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, 79510 + ... + 80521.

It is an arithmetic number, because the mean of its divisors is an integer number (8641728).

Almost surely, 2^80975686 is an apocalyptic number.

80975686 is a deficient number, since it is larger than the sum of its proper divisors (57291962).

80975686 is a wasteful number, since it uses less digits than its factorization.

80975686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160067.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 80975686 is about 8998.6491208403. The cubic root of 80975686 is about 432.6315743449.

The spelling of 80975686 in words is "eighty million, nine hundred seventy-five thousand, six hundred eighty-six".