7368639 has 8 divisors (see below), whose sum is σ = 10163760. Its totient is φ = 4742976.

The previous prime is 7368631. The next prime is 7368653. The reversal of 7368639 is 9368637.

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

It is not a de Polignac number, because 7368639 - 2³ = 7368631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7368639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7368631) 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, 42262 + ... + 42435.

It is an arithmetic number, because the mean of its divisors is an integer number (1270470).

Almost surely, 2^7368639 is an apocalyptic number.

7368639 is a deficient number, since it is larger than the sum of its proper divisors (2795121).

7368639 is a wasteful number, since it uses less digits than its factorization.

7368639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84729.

The product of its digits is 163296, while the sum is 42.

The square root of 7368639 is about 2714.5237151294. The cubic root of 7368639 is about 194.5938423233.

The spelling of 7368639 in words is "seven million, three hundred sixty-eight thousand, six hundred thirty-nine".