79638481 has 16 divisors (see below), whose sum is σ = 90599040. Its totient is φ = 69396480.

The previous prime is 79638347. The next prime is 79638487. The reversal of 79638481 is 18483697.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 79638481 - 2⁹ = 79637969 is a prime.

It is a super-2 number, since 2×79638481² = 12684575311974722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79638487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123921 + ... + 124561.

It is an arithmetic number, because the mean of its divisors is an integer number (5662440).

Almost surely, 2^79638481 is an apocalyptic number.

It is an amenable number.

79638481 is a deficient number, since it is larger than the sum of its proper divisors (10960559).

79638481 is a wasteful number, since it uses less digits than its factorization.

79638481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176.

The product of its digits is 290304, while the sum is 46.

The square root of 79638481 is about 8924.0395001367. The cubic root of 79638481 is about 430.2369002878.

The spelling of 79638481 in words is "seventy-nine million, six hundred thirty-eight thousand, four hundred eighty-one".