70870858 has 32 divisors (see below), whose sum is σ = 116593344. Its totient is φ = 32178432.

The previous prime is 70870853. The next prime is 70870861. The reversal of 70870858 is 85807807.

It is not an unprimeable number, because it can be changed into a prime (70870853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120441 + ... + 121027.

It is an arithmetic number, because the mean of its divisors is an integer number (3643542).

Almost surely, 2^70870858 is an apocalyptic number.

70870858 is a deficient number, since it is larger than the sum of its proper divisors (45722486).

70870858 is a wasteful number, since it uses less digits than its factorization.

70870858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 70870858 is about 8418.4831175218. The cubic root of 70870858 is about 413.8305645972.

The spelling of 70870858 in words is "seventy million, eight hundred seventy thousand, eight hundred fifty-eight".