82869660 has 36 divisors (see below), whose sum is σ = 251371848. Its totient is φ = 22098528.

The previous prime is 82869653. The next prime is 82869671. The reversal of 82869660 is 6696828.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230014 + ... + 230373.

Almost surely, 2^82869660 is an apocalyptic number.

It is an amenable number.

82869660 is an abundant number, since it is smaller than the sum of its proper divisors (168502188).

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

82869660 is a wasteful number, since it uses less digits than its factorization.

82869660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460402 (or 460397 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 82869660 is about 9103.2774317825. The cubic root of 82869660 is about 435.9786132651.

The spelling of 82869660 in words is "eighty-two million, eight hundred sixty-nine thousand, six hundred sixty".