869890914 has 28 divisors (see below), whose sum is σ = 1956362886. Its totient is φ = 289963152.

The previous prime is 869890913. The next prime is 869890933. The reversal of 869890914 is 419098968.

It can be written as a sum of positive squares in only one way, i.e., 836192889 + 33698025 = 28917^2 + 5805^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (869890913) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 296859 + ... + 299774.

Almost surely, 2^869890914 is an apocalyptic number.

869890914 is an abundant number, since it is smaller than the sum of its proper divisors (1086471972).

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

869890914 is an equidigital number, since it uses as much as digits as its factorization.

869890914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596653 (or 596638 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 869890914 is about 29493.9131686523. The cubic root of 869890914 is about 954.6003696941.

The spelling of 869890914 in words is "eight hundred sixty-nine million, eight hundred ninety thousand, nine hundred fourteen".