79982589 has 4 divisors (see below), whose sum is σ = 106643456. Its totient is φ = 53321724.

The previous prime is 79982563. The next prime is 79982593. The reversal of 79982589 is 98528997.

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 not a de Polignac number, because 79982589 - 2⁵ = 79982557 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 (79982549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13330429 + ... + 13330434.

It is an arithmetic number, because the mean of its divisors is an integer number (26660864).

Almost surely, 2^79982589 is an apocalyptic number.

It is an amenable number.

79982589 is a deficient number, since it is larger than the sum of its proper divisors (26660867).

79982589 is a wasteful number, since it uses less digits than its factorization.

79982589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26660866.

The product of its digits is 3265920, while the sum is 57.

The square root of 79982589 is about 8943.2985525476. The cubic root of 79982589 is about 430.8556766864.

The spelling of 79982589 in words is "seventy-nine million, nine hundred eighty-two thousand, five hundred eighty-nine".