79649589 has 8 divisors (see below), whose sum is σ = 106912800. Its totient is φ = 52743056.

The previous prime is 79649561. The next prime is 79649599. The reversal of 79649589 is 98594697.

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

It is a cyclic number.

It is not a de Polignac number, because 79649589 - 2¹⁹ = 79125301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79649599) 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 7 ways as a sum of consecutive naturals, for example, 88647 + ... + 89540.

It is an arithmetic number, because the mean of its divisors is an integer number (13364100).

Almost surely, 2^79649589 is an apocalyptic number.

It is an amenable number.

79649589 is a deficient number, since it is larger than the sum of its proper divisors (27263211).

79649589 is a wasteful number, since it uses less digits than its factorization.

79649589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178339.

The product of its digits is 4898880, while the sum is 57.

The square root of 79649589 is about 8924.6618423333. The cubic root of 79649589 is about 430.2569025499.

The spelling of 79649589 in words is "seventy-nine million, six hundred forty-nine thousand, five hundred eighty-nine".