70172065 has 16 divisors (see below), whose sum is σ = 87575040. Its totient is φ = 53919360.

The previous prime is 70172041. The next prime is 70172093. The reversal of 70172065 is 56027107.

It is not a de Polignac number, because 70172065 - 2¹¹ = 70170017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19917 + ... + 23173.

It is an arithmetic number, because the mean of its divisors is an integer number (5473440).

Almost surely, 2^70172065 is an apocalyptic number.

It is an amenable number.

70172065 is a deficient number, since it is larger than the sum of its proper divisors (17402975).

70172065 is a wasteful number, since it uses less digits than its factorization.

70172065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 70172065 is about 8376.8768046331. The cubic root of 70172065 is about 412.4659341320.

The spelling of 70172065 in words is "seventy million, one hundred seventy-two thousand, sixty-five".