70660172 has 12 divisors (see below), whose sum is σ = 134896776. Its totient is φ = 32118240.

The previous prime is 70660169. The next prime is 70660181. The reversal of 70660172 is 27106607.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802913 + ... + 803000.

It is an arithmetic number, because the mean of its divisors is an integer number (11241398).

Almost surely, 2^70660172 is an apocalyptic number.

It is an amenable number.

70660172 is a deficient number, since it is larger than the sum of its proper divisors (64236604).

70660172 is a wasteful number, since it uses less digits than its factorization.

70660172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605928 (or 1605926 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 70660172 is about 8405.9605043088. The cubic root of 70660172 is about 413.4200768921.

Adding to 70660172 its reverse (27106607), we get a palindrome (97766779).

The spelling of 70660172 in words is "seventy million, six hundred sixty thousand, one hundred seventy-two".