82921149 has 24 divisors (see below), whose sum is σ = 126852960. Its totient is φ = 52049952.

The previous prime is 82921117. The next prime is 82921151. The reversal of 82921149 is 94112928.

It is not a de Polignac number, because 82921149 - 2⁵ = 82921117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82921109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28182 + ... + 30984.

It is an arithmetic number, because the mean of its divisors is an integer number (5285540).

Almost surely, 2^82921149 is an apocalyptic number.

It is an amenable number.

82921149 is a deficient number, since it is larger than the sum of its proper divisors (43931811).

82921149 is a wasteful number, since it uses less digits than its factorization.

82921149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001 (or 2998 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 82921149 is about 9106.1050400267. The cubic root of 82921149 is about 436.0688893896.

The spelling of 82921149 in words is "eighty-two million, nine hundred twenty-one thousand, one hundred forty-nine".