869974590 has 32 divisors (see below), whose sum is σ = 2102970240. Its totient is φ = 230323104.

The previous prime is 869974583. The next prime is 869974591. The reversal of 869974590 is 95479968.

It is a self number, because there is not a number n which added to its sum of digits gives 869974590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869974591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100144 + ... + 108483.

It is an arithmetic number, because the mean of its divisors is an integer number (65717820).

Almost surely, 2^869974590 is an apocalyptic number.

869974590 is an abundant number, since it is smaller than the sum of its proper divisors (1232995650).

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

869974590 is a wasteful number, since it uses less digits than its factorization.

869974590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208776.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The square root of 869974590 is about 29495.3316645194. The cubic root of 869974590 is about 954.6309768190.

The spelling of 869974590 in words is "eight hundred sixty-nine million, nine hundred seventy-four thousand, five hundred ninety".