70870 has 16 divisors (see below), whose sum is σ = 134640. Its totient is φ = 26784.

The previous prime is 70867. The next prime is 70877. The reversal of 70870 is 7807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4 + ... + 376.

It is an arithmetic number, because the mean of its divisors is an integer number (8415).

2⁷⁰⁸⁷⁰ is an apocalyptic number.

70870 is a deficient number, since it is larger than the sum of its proper divisors (63770).

70870 is a wasteful number, since it uses less digits than its factorization.

70870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 70870 is about 266.2141994710. The cubic root of 70870 is about 41.3828894573.

The spelling of 70870 in words is "seventy thousand, eight hundred seventy".