82922989 has 4 divisors (see below), whose sum is σ = 83039040. Its totient is φ = 82806940.

The previous prime is 82922953. The next prime is 82923007. The reversal of 82922989 is 98922928.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82922989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82922909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56947 + ... + 58384.

It is an arithmetic number, because the mean of its divisors is an integer number (20759760).

Almost surely, 2^82922989 is an apocalyptic number.

It is an amenable number.

82922989 is a deficient number, since it is larger than the sum of its proper divisors (116051).

82922989 is a wasteful number, since it uses less digits than its factorization.

82922989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116050.

The product of its digits is 373248, while the sum is 49.

The square root of 82922989 is about 9106.2060705872. The cubic root of 82922989 is about 436.0721147864.

The spelling of 82922989 in words is "eighty-two million, nine hundred twenty-two thousand, nine hundred eighty-nine".