79297470 has 96 divisors (see below), whose sum is σ = 237219840. Its totient is φ = 18002880.

The previous prime is 79297451. The next prime is 79297483. The reversal of 79297470 is 7479297.

It is a happy number.

79297470 is a `hidden beast` number, since 7 + 92 + 97 + 470 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120001 + ... + 120659.

It is an arithmetic number, because the mean of its divisors is an integer number (2471040).

Almost surely, 2^79297470 is an apocalyptic number.

79297470 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 79297470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118609920).

79297470 is an abundant number, since it is smaller than the sum of its proper divisors (157922370).

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

79297470 is a wasteful number, since it uses less digits than its factorization.

79297470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 79297470 is about 8904.9126890723. The cubic root of 79297470 is about 429.6219319764.

The spelling of 79297470 in words is "seventy-nine million, two hundred ninety-seven thousand, four hundred seventy".