82997955 has 48 divisors (see below), whose sum is σ = 149909760. Its totient is φ = 42444864.

The previous prime is 82997939. The next prime is 82997969. The reversal of 82997955 is 55979928.

It is not a de Polignac number, because 82997955 - 2⁴ = 82997939 is a prime.

Its product of digits (2041200) is a multiple of the sum of its prime factors (840).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113802 + ... + 114528.

It is an arithmetic number, because the mean of its divisors is an integer number (3123120).

Almost surely, 2^82997955 is an apocalyptic number.

82997955 is a deficient number, since it is larger than the sum of its proper divisors (66911805).

82997955 is a wasteful number, since it uses less digits than its factorization.

82997955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 837 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 54.

The square root of 82997955 is about 9110.3213444971. The cubic root of 82997955 is about 436.2034846122.

The spelling of 82997955 in words is "eighty-two million, nine hundred ninety-seven thousand, nine hundred fifty-five".