70856870 has 16 divisors (see below), whose sum is σ = 145762848. Its totient is φ = 24293760.

The previous prime is 70856861. The next prime is 70856873. The reversal of 70856870 is 7865807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70856873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506051 + ... + 506190.

It is an arithmetic number, because the mean of its divisors is an integer number (9110178).

Almost surely, 2^70856870 is an apocalyptic number.

70856870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70856870 is an abundant number, since it is smaller than the sum of its proper divisors (74905978).

70856870 is a wasteful number, since it uses less digits than its factorization.

70856870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012255.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 70856870 is about 8417.6522855247. The cubic root of 70856870 is about 413.8033364671.

The spelling of 70856870 in words is "seventy million, eight hundred fifty-six thousand, eight hundred seventy".