70870837 has 16 divisors (see below), whose sum is σ = 75620160. Its totient is φ = 66326400.

The previous prime is 70870831. The next prime is 70870847. The reversal of 70870837 is 73807807.

It is a cyclic number.

It is not a de Polignac number, because 70870837 - 2²³ = 62482229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70870837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70870831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107214 + ... + 107872.

It is an arithmetic number, because the mean of its divisors is an integer number (4726260).

Almost surely, 2^70870837 is an apocalyptic number.

It is an amenable number.

70870837 is a deficient number, since it is larger than the sum of its proper divisors (4749323).

70870837 is a wasteful number, since it uses less digits than its factorization.

70870837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 70870837 is about 8418.4818702662. The cubic root of 70870837 is about 413.8305237226.

The spelling of 70870837 in words is "seventy million, eight hundred seventy thousand, eight hundred thirty-seven".