70747715 has 4 divisors (see below), whose sum is σ = 84897264. Its totient is φ = 56598168.

The previous prime is 70747711. The next prime is 70747723. The reversal of 70747715 is 51774707.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70747715 - 2² = 70747711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70747711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7074767 + ... + 7074776.

It is an arithmetic number, because the mean of its divisors is an integer number (21224316).

Almost surely, 2^70747715 is an apocalyptic number.

70747715 is a deficient number, since it is larger than the sum of its proper divisors (14149549).

70747715 is a wasteful number, since it uses less digits than its factorization.

70747715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14149548.

The product of its (nonzero) digits is 48020, while the sum is 38.

The square root of 70747715 is about 8411.1660903825. The cubic root of 70747715 is about 413.5907392638.

The spelling of 70747715 in words is "seventy million, seven hundred forty-seven thousand, seven hundred fifteen".