79707474 has 96 divisors (see below), whose sum is σ = 217451520. Its totient is φ = 20498400.

The previous prime is 79707461. The next prime is 79707491. The reversal of 79707474 is 47470797.

It is a super-2 number, since 2×79707474² = 12706562822921352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 181347 + ... + 181785.

It is an arithmetic number, because the mean of its divisors is an integer number (2265120).

Almost surely, 2^79707474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79707474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108725760).

79707474 is an abundant number, since it is smaller than the sum of its proper divisors (137744046).

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

79707474 is a wasteful number, since it uses less digits than its factorization.

79707474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The square root of 79707474 is about 8927.9042333573. The cubic root of 79707474 is about 430.3611064353.

The spelling of 79707474 in words is "seventy-nine million, seven hundred seven thousand, four hundred seventy-four".