80931401 has 4 divisors (see below), whose sum is σ = 81732804. Its totient is φ = 80130000.

The previous prime is 80931397. The next prime is 80931413. The reversal of 80931401 is 10413908.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62647225 + 18284176 = 7915^2 + 4276^2 .

It is a cyclic number.

It is not a de Polignac number, because 80931401 - 2² = 80931397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80931481) 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 3 ways as a sum of consecutive naturals, for example, 400550 + ... + 400751.

It is an arithmetic number, because the mean of its divisors is an integer number (20433201).

Almost surely, 2^80931401 is an apocalyptic number.

It is an amenable number.

80931401 is a deficient number, since it is larger than the sum of its proper divisors (801403).

80931401 is a wasteful number, since it uses less digits than its factorization.

80931401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801402.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 80931401 is about 8996.1881372057. The cubic root of 80931401 is about 432.5526923004.

The spelling of 80931401 in words is "eighty million, nine hundred thirty-one thousand, four hundred one".