869345904 has 240 divisors, whose sum is σ = 2760434432. Its totient is φ = 230833152.

The previous prime is 869345879. The next prime is 869345929. The reversal of 869345904 is 409543968.

It is an interprime number because it is at equal distance from previous prime (869345879) and next prime (869345929).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11908812 + ... + 11908884.

Almost surely, 2^869345904 is an apocalyptic number.

869345904 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869345904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1380217216).

869345904 is an abundant number, since it is smaller than the sum of its proper divisors (1891088528).

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

869345904 is a wasteful number, since it uses less digits than its factorization.

869345904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 869345904 is about 29484.6723570061. The cubic root of 869345904 is about 954.4009671289.

The spelling of 869345904 in words is "eight hundred sixty-nine million, three hundred forty-five thousand, nine hundred four".