79737490 has 64 divisors (see below), whose sum is σ = 174182400. Its totient is φ = 25672896.

The previous prime is 79737451. The next prime is 79737491. The reversal of 79737490 is 9473797.

It is a self number, because there is not a number n which added to its sum of digits gives 79737490.

It is not an unprimeable number, because it can be changed into a prime (79737491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221931 + ... + 222289.

It is an arithmetic number, because the mean of its divisors is an integer number (2721600).

Almost surely, 2^79737490 is an apocalyptic number.

79737490 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

79737490 is an abundant number, since it is smaller than the sum of its proper divisors (94444910).

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

79737490 is a wasteful number, since it uses less digits than its factorization.

79737490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559.

The product of its (nonzero) digits is 333396, while the sum is 46.

The square root of 79737490 is about 8929.5850967444. The cubic root of 79737490 is about 430.4151210179.

The spelling of 79737490 in words is "seventy-nine million, seven hundred thirty-seven thousand, four hundred ninety".