70312715 has 16 divisors (see below), whose sum is σ = 93786336. Its totient is φ = 50169600.

The previous prime is 70312709. The next prime is 70312717. The reversal of 70312715 is 51721307.

It is not a de Polignac number, because 70312715 - 2⁴ = 70312699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70312717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9146 + ... + 14975.

It is an arithmetic number, because the mean of its divisors is an integer number (5861646).

Almost surely, 2^70312715 is an apocalyptic number.

70312715 is a deficient number, since it is larger than the sum of its proper divisors (23473621).

70312715 is a wasteful number, since it uses less digits than its factorization.

70312715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24190.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 70312715 is about 8385.2677357375. The cubic root of 70312715 is about 412.7413268014.

The spelling of 70312715 in words is "seventy million, three hundred twelve thousand, seven hundred fifteen".