70397715 has 16 divisors (see below), whose sum is σ = 113224608. Its totient is φ = 37349376.

The previous prime is 70397699. The next prime is 70397741. The reversal of 70397715 is 51779307.

It is a happy number.

It is not a de Polignac number, because 70397715 - 2⁴ = 70397699 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, 9264 + ... + 15053.

It is an arithmetic number, because the mean of its divisors is an integer number (7076538).

Almost surely, 2^70397715 is an apocalyptic number.

70397715 is a deficient number, since it is larger than the sum of its proper divisors (42826893).

70397715 is a wasteful number, since it uses less digits than its factorization.

70397715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24518.

The product of its (nonzero) digits is 46305, while the sum is 39.

The square root of 70397715 is about 8390.3346178803. The cubic root of 70397715 is about 412.9075787856.

The spelling of 70397715 in words is "seventy million, three hundred ninety-seven thousand, seven hundred fifteen".