79531480 has 32 divisors (see below), whose sum is σ = 204510240. Its totient is φ = 27267840.

The previous prime is 79531453. The next prime is 79531481. The reversal of 79531480 is 8413597.

It is a super-3 number, since 3×79531480³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79531481) 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, 141741 + ... + 142300.

It is an arithmetic number, because the mean of its divisors is an integer number (6390945).

Almost surely, 2^79531480 is an apocalyptic number.

79531480 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79531480 is an abundant number, since it is smaller than the sum of its proper divisors (124978760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79531480 is a wasteful number, since it uses less digits than its factorization.

79531480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284059 (or 284055 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 79531480 is about 8918.0423860845. The cubic root of 79531480 is about 430.0441274346.

The spelling of 79531480 in words is "seventy-nine million, five hundred thirty-one thousand, four hundred eighty".