7713989 has 4 divisors (see below), whose sum is σ = 7739424. Its totient is φ = 7688556.

The previous prime is 7713967. The next prime is 7713997. The reversal of 7713989 is 9893177.

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 not a de Polignac number, because 7713989 - 2²⁰ = 6665413 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 (7713919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12257 + ... + 12870.

It is an arithmetic number, because the mean of its divisors is an integer number (1934856).

Almost surely, 2^7713989 is an apocalyptic number.

It is an amenable number.

7713989 is a deficient number, since it is larger than the sum of its proper divisors (25435).

7713989 is a wasteful number, since it uses less digits than its factorization.

7713989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25434.

The product of its digits is 95256, while the sum is 44.

The square root of 7713989 is about 2777.4068841277. The cubic root of 7713989 is about 197.5875934694.

The spelling of 7713989 in words is "seven million, seven hundred thirteen thousand, nine hundred eighty-nine".