80657001 has 6 divisors (see below), whose sum is σ = 116504570. Its totient is φ = 53771328.

The previous prime is 80656997. The next prime is 80657011. The reversal of 80657001 is 10075608.

80657001 is a `hidden beast` number, since 8 + 0 + 657 + 0 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 74649600 + 6007401 = 8640^2 + 2451^2 .

It is not a de Polignac number, because 80657001 - 2² = 80656997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80657011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4480936 + ... + 4480953.

Almost surely, 2^80657001 is an apocalyptic number.

It is an amenable number.

80657001 is a deficient number, since it is larger than the sum of its proper divisors (35847569).

80657001 is a wasteful number, since it uses less digits than its factorization.

80657001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8961895 (or 8961892 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 80657001 is about 8980.9242842817. The cubic root of 80657001 is about 432.0632784107.

The spelling of 80657001 in words is "eighty million, six hundred fifty-seven thousand, one".