79961974 has 16 divisors (see below), whose sum is σ = 121282560. Its totient is φ = 39537000.

The previous prime is 79961971. The next prime is 79961977. The reversal of 79961974 is 47916997.

It is an interprime number because it is at equal distance from previous prime (79961971) and next prime (79961977).

It is a super-3 number, since 3×79961974³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79961971) 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, 106099 + ... + 106849.

It is an arithmetic number, because the mean of its divisors is an integer number (7580160).

Almost surely, 2^79961974 is an apocalyptic number.

79961974 is a deficient number, since it is larger than the sum of its proper divisors (41320586).

79961974 is a wasteful number, since it uses less digits than its factorization.

79961974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275.

The product of its digits is 857304, while the sum is 52.

The square root of 79961974 is about 8942.1459393146. The cubic root of 79961974 is about 430.8186567420.

The spelling of 79961974 in words is "seventy-nine million, nine hundred sixty-one thousand, nine hundred seventy-four".