870143902 has 16 divisors (see below), whose sum is σ = 1349559792. Its totient is φ = 420489280.

The previous prime is 870143899. The next prime is 870143933. The reversal of 870143902 is 209341078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40813 + ... + 58360.

It is an arithmetic number, because the mean of its divisors is an integer number (84347487).

Almost surely, 2^870143902 is an apocalyptic number.

870143902 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

870143902 is a deficient number, since it is larger than the sum of its proper divisors (479415890).

870143902 is a wasteful number, since it uses less digits than its factorization.

870143902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99323.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 870143902 is about 29498.2016740004. The cubic root of 870143902 is about 954.6929019976.

The spelling of 870143902 in words is "eight hundred seventy million, one hundred forty-three thousand, nine hundred two".