869955424 has 24 divisors (see below), whose sum is σ = 1844473680. Its totient is φ = 401517696.

The previous prime is 869955421. The next prime is 869955431. The reversal of 869955424 is 424559968.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869955421) 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 3 ways as a sum of consecutive naturals, for example, 1045204 + ... + 1046035.

It is an arithmetic number, because the mean of its divisors is an integer number (76853070).

Almost surely, 2^869955424 is an apocalyptic number.

It is an amenable number.

869955424 is an abundant number, since it is smaller than the sum of its proper divisors (974518256).

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

869955424 is a wasteful number, since it uses less digits than its factorization.

869955424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091262 (or 2091254 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 52.

The square root of 869955424 is about 29495.0067638575. The cubic root of 869955424 is about 954.6239664258.

The spelling of 869955424 in words is "eight hundred sixty-nine million, nine hundred fifty-five thousand, four hundred twenty-four".