79172475 has 24 divisors (see below), whose sum is σ = 131545152. Its totient is φ = 42016800.

The previous prime is 79172461. The next prime is 79172479. The reversal of 79172475 is 57427197.

It is not a de Polignac number, because 79172475 - 2⁴ = 79172459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79172479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13324 + ... + 18326.

It is an arithmetic number, because the mean of its divisors is an integer number (5481048).

Almost surely, 2^79172475 is an apocalyptic number.

79172475 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

79172475 is a deficient number, since it is larger than the sum of its proper divisors (52372677).

79172475 is a wasteful number, since it uses less digits than its factorization.

79172475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5227 (or 5222 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 79172475 is about 8897.8916041948. The cubic root of 79172475 is about 429.3960784747.

The spelling of 79172475 in words is "seventy-nine million, one hundred seventy-two thousand, four hundred seventy-five".