79932481 has 4 divisors (see below), whose sum is σ = 80013652. Its totient is φ = 79851312.

The previous prime is 79932473. The next prime is 79932547. The reversal of 79932481 is 18423997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18423997 = 1427 ⋅12911.

It can be written as a sum of positive squares in 2 ways, for example, as 43824400 + 36108081 = 6620^2 + 6009^2 .

It is a cyclic number.

It is not a de Polignac number, because 79932481 - 2³ = 79932473 is a prime.

It is a super-2 number, since 2×79932481² = 12778403037630722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79932421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39090 + ... + 41083.

It is an arithmetic number, because the mean of its divisors is an integer number (20003413).

Almost surely, 2^79932481 is an apocalyptic number.

It is an amenable number.

79932481 is a deficient number, since it is larger than the sum of its proper divisors (81171).

79932481 is an equidigital number, since it uses as much as digits as its factorization.

79932481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81170.

The product of its digits is 108864, while the sum is 43.

The square root of 79932481 is about 8940.4966864263. The cubic root of 79932481 is about 430.7656828242.

The spelling of 79932481 in words is "seventy-nine million, nine hundred thirty-two thousand, four hundred eighty-one".