7250639 has 8 divisors (see below), whose sum is σ = 7959168. Its totient is φ = 6550360.

The previous prime is 7250629. The next prime is 7250669. The reversal of 7250639 is 9360527.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7250639 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 (7250629) 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, 137 + ... + 3810.

It is an arithmetic number, because the mean of its divisors is an integer number (994896).

Almost surely, 2^7250639 is an apocalyptic number.

7250639 is a deficient number, since it is larger than the sum of its proper divisors (708529).

7250639 is a wasteful number, since it uses less digits than its factorization.

7250639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 7250639 is about 2692.7010602739. The cubic root of 7250639 is about 193.5495180486.

The spelling of 7250639 in words is "seven million, two hundred fifty thousand, six hundred thirty-nine".