869654028 has 18 divisors (see below), whose sum is σ = 2029431124. Its totient is φ = 289850624.

The previous prime is 869653991. The next prime is 869654033. The reversal of 869654028 is 820456968.

It is a happy number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 97900 + ... + 106412.

Almost surely, 2^869654028 is an apocalyptic number.

It is an amenable number.

869654028 is an abundant number, since it is smaller than the sum of its proper divisors (1159777096).

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

869654028 is an frugal number, since it uses more digits than its factorization.

869654028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17033 (or 8518 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 869654028 is about 29489.8970496677. The cubic root of 869654028 is about 954.5137105551.

Multiplying 869654028 by its sum of digits (48), we get a square (41743393344 = 204312²).

The spelling of 869654028 in words is "eight hundred sixty-nine million, six hundred fifty-four thousand, twenty-eight".