6402870 has 24 divisors (see below), whose sum is σ = 16647696. Its totient is φ = 1707408.

The previous prime is 6402859. The next prime is 6402883. The reversal of 6402870 is 782046.

6402870 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35482 + ... + 35661.

It is an arithmetic number, because the mean of its divisors is an integer number (693654).

Almost surely, 2^6402870 is an apocalyptic number.

6402870 is an abundant number, since it is smaller than the sum of its proper divisors (10244826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6402870 is a wasteful number, since it uses less digits than its factorization.

6402870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71156 (or 71153 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 6402870 is about 2530.3892981121. The cubic root of 6402870 is about 185.6913020303.

The spelling of 6402870 in words is "six million, four hundred two thousand, eight hundred seventy".