80391913 has 8 divisors (see below), whose sum is σ = 92236032. Its totient is φ = 68637696.

The previous prime is 80391911. The next prime is 80391917. The reversal of 80391913 is 31919308.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80391913 - 2¹ = 80391911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80391911) 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, 20545 + ... + 24142.

It is an arithmetic number, because the mean of its divisors is an integer number (11529504).

Almost surely, 2^80391913 is an apocalyptic number.

It is an amenable number.

80391913 is a deficient number, since it is larger than the sum of its proper divisors (11844119).

80391913 is a wasteful number, since it uses less digits than its factorization.

80391913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44951.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 80391913 is about 8966.1537461723. The cubic root of 80391913 is about 431.5894179252.

The spelling of 80391913 in words is "eighty million, three hundred ninety-one thousand, nine hundred thirteen".