7389389 has 8 divisors (see below), whose sum is σ = 8651328. Its totient is φ = 6179040.

The previous prime is 7389383. The next prime is 7389397. The reversal of 7389389 is 9839837.

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

It is a de Polignac number, because none of the positive numbers 2^k-7389389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7389383) 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, 12587 + ... + 13160.

It is an arithmetic number, because the mean of its divisors is an integer number (1081416).

Almost surely, 2^7389389 is an apocalyptic number.

It is an amenable number.

7389389 is a deficient number, since it is larger than the sum of its proper divisors (1261939).

7389389 is a wasteful number, since it uses less digits than its factorization.

7389389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25795.

The product of its digits is 326592, while the sum is 47.

The square root of 7389389 is about 2718.3430614990. The cubic root of 7389389 is about 194.7763291205.

The spelling of 7389389 in words is "seven million, three hundred eighty-nine thousand, three hundred eighty-nine".