80479491 has 4 divisors (see below), whose sum is σ = 107305992. Its totient is φ = 53652992.

The previous prime is 80479489. The next prime is 80479501. The reversal of 80479491 is 19497408.

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

It is a cyclic number.

It is not a de Polignac number, because 80479491 - 2¹ = 80479489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80479291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13413246 + ... + 13413251.

It is an arithmetic number, because the mean of its divisors is an integer number (26826498).

Almost surely, 2^80479491 is an apocalyptic number.

80479491 is a deficient number, since it is larger than the sum of its proper divisors (26826501).

80479491 is a wasteful number, since it uses less digits than its factorization.

80479491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26826500.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 80479491 is about 8971.0362277721. The cubic root of 80479491 is about 431.7460838528.

The spelling of 80479491 in words is "eighty million, four hundred seventy-nine thousand, four hundred ninety-one".