82944989 has 8 divisors (see below), whose sum is σ = 89693568. Its totient is φ = 76404160.

The previous prime is 82944977. The next prime is 82945007. The reversal of 82944989 is 98944928.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82944989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82944989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82944929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51107 + ... + 52704.

It is an arithmetic number, because the mean of its divisors is an integer number (11211696).

Almost surely, 2^82944989 is an apocalyptic number.

It is an amenable number.

82944989 is a deficient number, since it is larger than the sum of its proper divisors (6748579).

82944989 is a wasteful number, since it uses less digits than its factorization.

82944989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103875.

The product of its digits is 1492992, while the sum is 53.

The square root of 82944989 is about 9107.4139578697. The cubic root of 82944989 is about 436.1106756180.

The spelling of 82944989 in words is "eighty-two million, nine hundred forty-four thousand, nine hundred eighty-nine".