82920518 has 4 divisors (see below), whose sum is σ = 124380780. Its totient is φ = 41460258.

The previous prime is 82920517. The next prime is 82920527. The reversal of 82920518 is 81502928.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82920517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20730128 + ... + 20730131.

It is an arithmetic number, because the mean of its divisors is an integer number (31095195).

Almost surely, 2^82920518 is an apocalyptic number.

82920518 is a deficient number, since it is larger than the sum of its proper divisors (41460262).

82920518 is a wasteful number, since it uses less digits than its factorization.

82920518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41460261.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 82920518 is about 9106.0703928753. The cubic root of 82920518 is about 436.0677832779.

It can be divided in two parts, 82920 and 518, that added together give a palindrome (83438).

The spelling of 82920518 in words is "eighty-two million, nine hundred twenty thousand, five hundred eighteen".