80934857 has 2 divisors, whose sum is σ = 80934858. Its totient is φ = 80934856.

The previous prime is 80934839. The next prime is 80934883. The reversal of 80934857 is 75843908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52940176 + 27994681 = 7276^2 + 5291^2 .

It is a cyclic number.

It is not a de Polignac number, because 80934857 - 2⁶ = 80934793 is a prime.

It is a super-2 number, since 2×80934857² = 13100902155220898, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80934457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40467428 + 40467429.

It is an arithmetic number, because the mean of its divisors is an integer number (40467429).

Almost surely, 2^80934857 is an apocalyptic number.

It is an amenable number.

80934857 is a deficient number, since it is larger than the sum of its proper divisors (1).

80934857 is an equidigital number, since it uses as much as digits as its factorization.

80934857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 80934857 is about 8996.3802165093. The cubic root of 80934857 is about 432.5588492877.

The spelling of 80934857 in words is "eighty million, nine hundred thirty-four thousand, eight hundred fifty-seven".