80968257 has 12 divisors (see below), whose sum is σ = 122039424. Its totient is φ = 51631800.

The previous prime is 80968241. The next prime is 80968271. The reversal of 80968257 is 75286908.

It is not a de Polignac number, because 80968257 - 2⁴ = 80968241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80968057) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 195369 + ... + 195782.

It is an arithmetic number, because the mean of its divisors is an integer number (10169952).

Almost surely, 2^80968257 is an apocalyptic number.

It is an amenable number.

80968257 is a deficient number, since it is larger than the sum of its proper divisors (41071167).

80968257 is a wasteful number, since it uses less digits than its factorization.

80968257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391180 (or 391177 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 80968257 is about 8998.2363271921. The cubic root of 80968257 is about 432.6183435492.

It can be divided in two parts, 80968 and 257, that added together give a square (81225 = 285²).

The spelling of 80968257 in words is "eighty million, nine hundred sixty-eight thousand, two hundred fifty-seven".