80670357 has 8 divisors (see below), whose sum is σ = 119511680. Its totient is φ = 53780220.

The previous prime is 80670353. The next prime is 80670449. The reversal of 80670357 is 75307608.

It is not a de Polignac number, because 80670357 - 2² = 80670353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80670353) 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, 1493869 + ... + 1493922.

It is an arithmetic number, because the mean of its divisors is an integer number (14938960).

Almost surely, 2^80670357 is an apocalyptic number.

It is an amenable number.

80670357 is a deficient number, since it is larger than the sum of its proper divisors (38841323).

80670357 is a wasteful number, since it uses less digits than its factorization.

80670357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987800 (or 2987794 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 80670357 is about 8981.6678295292. The cubic root of 80670357 is about 432.0871255601.

The spelling of 80670357 in words is "eighty million, six hundred seventy thousand, three hundred fifty-seven".