70172516 has 24 divisors (see below), whose sum is σ = 125620320. Its totient is φ = 34290432.

The previous prime is 70172513. The next prime is 70172521. The reversal of 70172516 is 61527107.

It is not an unprimeable number, because it can be changed into a prime (70172513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31115 + ... + 33293.

It is an arithmetic number, because the mean of its divisors is an integer number (5234180).

Almost surely, 2^70172516 is an apocalyptic number.

It is an amenable number.

70172516 is a deficient number, since it is larger than the sum of its proper divisors (55447804).

70172516 is a wasteful number, since it uses less digits than its factorization.

70172516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363 (or 2361 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 70172516 is about 8376.9037239305. The cubic root of 70172516 is about 412.4668177777.

The spelling of 70172516 in words is "seventy million, one hundred seventy-two thousand, five hundred sixteen".