7312990 has 8 divisors (see below), whose sum is σ = 13163400. Its totient is φ = 2925192.

The previous prime is 7312979. The next prime is 7312997. The reversal of 7312990 is 992137.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7312997) 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, 365640 + ... + 365659.

It is an arithmetic number, because the mean of its divisors is an integer number (1645425).

Almost surely, 2^7312990 is an apocalyptic number.

7312990 is a deficient number, since it is larger than the sum of its proper divisors (5850410).

7312990 is a wasteful number, since it uses less digits than its factorization.

7312990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731306.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 7312990 is about 2704.2540561123. The cubic root of 7312990 is about 194.1027372369.

It can be divided in two parts, 731 and 2990, that added together give a square (3721 = 61²).

The spelling of 7312990 in words is "seven million, three hundred twelve thousand, nine hundred ninety".