82897750 has 64 divisors (see below), whose sum is σ = 174545280. Its totient is φ = 29251200.

The previous prime is 82897739. The next prime is 82897783. The reversal of 82897750 is 5779828.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 82897750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74196 + ... + 75304.

It is an arithmetic number, because the mean of its divisors is an integer number (2727270).

Almost surely, 2^82897750 is an apocalyptic number.

82897750 is an abundant number, since it is smaller than the sum of its proper divisors (91647530).

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

82897750 is a wasteful number, since it uses less digits than its factorization.

82897750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 82897750 is about 9104.8201519854. The cubic root of 82897750 is about 436.0278683474.

The spelling of 82897750 in words is "eighty-two million, eight hundred ninety-seven thousand, seven hundred fifty".