7399889 has 8 divisors (see below), whose sum is σ = 8685888. Its totient is φ = 6171120.

The previous prime is 7399883. The next prime is 7399897. The reversal of 7399889 is 9889937.

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 7399889 - 2¹² = 7395793 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 7399889.

It is not an unprimeable number, because it can be changed into a prime (7399883) 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, 14027 + ... + 14544.

It is an arithmetic number, because the mean of its divisors is an integer number (1085736).

Almost surely, 2^7399889 is an apocalyptic number.

It is an amenable number.

7399889 is a deficient number, since it is larger than the sum of its proper divisors (1285999).

7399889 is a wasteful number, since it uses less digits than its factorization.

7399889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28615.

The product of its digits is 979776, while the sum is 53.

The square root of 7399889 is about 2720.2736994648. The cubic root of 7399889 is about 194.8685416850.

The spelling of 7399889 in words is "seven million, three hundred ninety-nine thousand, eight hundred eighty-nine".