79961481 has 12 divisors (see below), whose sum is σ = 121579120. Its totient is φ = 50501880.

The previous prime is 79961473. The next prime is 79961491. The reversal of 79961481 is 18416997.

It is a happy number.

It is not a de Polignac number, because 79961481 - 2³ = 79961473 is a prime.

It is a super-2 number, since 2×79961481² = 12787676887426722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79961491) 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 11 ways as a sum of consecutive naturals, for example, 233635 + ... + 233976.

Almost surely, 2^79961481 is an apocalyptic number.

It is an amenable number.

79961481 is a deficient number, since it is larger than the sum of its proper divisors (41617639).

79961481 is a wasteful number, since it uses less digits than its factorization.

79961481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467636 (or 467633 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 79961481 is about 8942.1183731821. The cubic root of 79961481 is about 430.8177713460.

The spelling of 79961481 in words is "seventy-nine million, nine hundred sixty-one thousand, four hundred eighty-one".