82920850 has 12 divisors (see below), whose sum is σ = 154232874. Its totient is φ = 33168320.

The previous prime is 82920847. The next prime is 82920857. The reversal of 82920850 is 5802928.

It can be written as a sum of positive squares in 3 ways, for example, as 69605649 + 13315201 = 8343^2 + 3649^2 .

It is not an unprimeable number, because it can be changed into a prime (82920857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 829159 + ... + 829258.

Almost surely, 2^82920850 is an apocalyptic number.

82920850 is a deficient number, since it is larger than the sum of its proper divisors (71312024).

82920850 is a wasteful number, since it uses less digits than its factorization.

82920850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658429 (or 1658424 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 82920850 is about 9106.0886224548. The cubic root of 82920850 is about 436.0683652581.

The spelling of 82920850 in words is "eighty-two million, nine hundred twenty thousand, eight hundred fifty".