70870867 has 12 divisors (see below), whose sum is σ = 75785760. Its totient is φ = 66193680.

The previous prime is 70870861. The next prime is 70870871. The reversal of 70870867 is 76807807.

It is a de Polignac number, because none of the positive numbers 2^k-70870867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70870861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26598 + ... + 29140.

It is an arithmetic number, because the mean of its divisors is an integer number (6315480).

Almost surely, 2^70870867 is an apocalyptic number.

70870867 is a deficient number, since it is larger than the sum of its proper divisors (4914893).

70870867 is a wasteful number, since it uses less digits than its factorization.

70870867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634 (or 2603 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 70870867 is about 8418.4836520599. The cubic root of 70870867 is about 413.8305821148.

The spelling of 70870867 in words is "seventy million, eight hundred seventy thousand, eight hundred sixty-seven".