7312722 has 8 divisors (see below), whose sum is σ = 14625456. Its totient is φ = 2437572.

The previous prime is 7312699. The next prime is 7312751. The reversal of 7312722 is 2272137.

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

7312722 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7312692 and 7312701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609388 + ... + 609399.

It is an arithmetic number, because the mean of its divisors is an integer number (1828182).

Almost surely, 2^7312722 is an apocalyptic number.

7312722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7312722 is a wasteful number, since it uses less digits than its factorization.

7312722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218792.

The product of its digits is 1176, while the sum is 24.

The square root of 7312722 is about 2704.2045041010. The cubic root of 7312722 is about 194.1003661060.

Adding to 7312722 its reverse (2272137), we get a palindrome (9584859).

The spelling of 7312722 in words is "seven million, three hundred twelve thousand, seven hundred twenty-two".