70389065 has 32 divisors (see below), whose sum is σ = 91238400. Its totient is φ = 52032960.

The previous prime is 70389049. The next prime is 70389107. The reversal of 70389065 is 56098307.

It is not a de Polignac number, because 70389065 - 2⁴ = 70389049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 393146 + ... + 393324.

It is an arithmetic number, because the mean of its divisors is an integer number (2851200).

Almost surely, 2^70389065 is an apocalyptic number.

It is an amenable number.

70389065 is a deficient number, since it is larger than the sum of its proper divisors (20849335).

70389065 is a wasteful number, since it uses less digits than its factorization.

70389065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 70389065 is about 8389.8191279669. The cubic root of 70389065 is about 412.8906663198.

The spelling of 70389065 in words is "seventy million, three hundred eighty-nine thousand, sixty-five".