7513722 has 20 divisors (see below), whose sum is σ = 16836666. Its totient is φ = 2504520.

The previous prime is 7513703. The next prime is 7513729. The reversal of 7513722 is 2273157.

It can be written as a sum of positive squares in only one way, i.e., 5948721 + 1565001 = 2439^2 + 1251^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7513729) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 23029 + ... + 23352.

Almost surely, 2^7513722 is an apocalyptic number.

7513722 is an abundant number, since it is smaller than the sum of its proper divisors (9322944).

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

7513722 is a wasteful number, since it uses less digits than its factorization.

7513722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46395 (or 46386 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 7513722 is about 2741.1169256345. The cubic root of 7513722 is about 195.8626866920.

Adding to 7513722 its reverse (2273157), we get a palindrome (9786879).

The spelling of 7513722 in words is "seven million, five hundred thirteen thousand, seven hundred twenty-two".