70713215 has 4 divisors (see below), whose sum is σ = 84855864. Its totient is φ = 56570568.

The previous prime is 70713191. The next prime is 70713221. The reversal of 70713215 is 51231707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51231707 = 107 ⋅478801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70713215 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7071317 + ... + 7071326.

It is an arithmetic number, because the mean of its divisors is an integer number (21213966).

Almost surely, 2^70713215 is an apocalyptic number.

70713215 is a deficient number, since it is larger than the sum of its proper divisors (14142649).

70713215 is a wasteful number, since it uses less digits than its factorization.

70713215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14142648.

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

The square root of 70713215 is about 8409.1149950515. The cubic root of 70713215 is about 413.5234993982.

The spelling of 70713215 in words is "seventy million, seven hundred thirteen thousand, two hundred fifteen".