7104639 has 4 divisors (see below), whose sum is σ = 9472856. Its totient is φ = 4736424.

The previous prime is 7104619. The next prime is 7104653. The reversal of 7104639 is 9364017.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7104639 - 2⁵ = 7104607 is a prime.

It is a Duffinian number.

7104639 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7104619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1184104 + ... + 1184109.

It is an arithmetic number, because the mean of its divisors is an integer number (2368214).

Almost surely, 2^7104639 is an apocalyptic number.

7104639 is a deficient number, since it is larger than the sum of its proper divisors (2368217).

7104639 is a wasteful number, since it uses less digits than its factorization.

7104639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368216.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 7104639 is about 2665.4528695890. The cubic root of 7104639 is about 192.2415850028.

The spelling of 7104639 in words is "seven million, one hundred four thousand, six hundred thirty-nine".