869072406 has 16 divisors (see below), whose sum is σ = 1798081200. Its totient is φ = 279701408.

The previous prime is 869072389. The next prime is 869072423. The reversal of 869072406 is 604270968.

It is an interprime number because it is at equal distance from previous prime (869072389) and next prime (869072423).

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, 2497161 + ... + 2497508.

It is an arithmetic number, because the mean of its divisors is an integer number (112380075).

Almost surely, 2^869072406 is an apocalyptic number.

869072406 is an abundant number, since it is smaller than the sum of its proper divisors (929008794).

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

869072406 is a wasteful number, since it uses less digits than its factorization.

869072406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4994703.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 869072406 is about 29480.0340230469. The cubic root of 869072406 is about 954.3008711324.

The spelling of 869072406 in words is "eight hundred sixty-nine million, seventy-two thousand, four hundred six".