7481722 has 8 divisors (see below), whose sum is σ = 11234196. Its totient is φ = 3736992.

The previous prime is 7481713. The next prime is 7481723. The reversal of 7481722 is 2271847.

It can be written as a sum of positive squares in 2 ways, for example, as 7230721 + 251001 = 2689^2 + 501^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7481723) 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, 2758 + ... + 4750.

Almost surely, 2^7481722 is an apocalyptic number.

7481722 is a deficient number, since it is larger than the sum of its proper divisors (3752474).

7481722 is a wasteful number, since it uses less digits than its factorization.

7481722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872.

The product of its digits is 6272, while the sum is 31.

The square root of 7481722 is about 2735.2736608976. The cubic root of 7481722 is about 195.5842394841.

It can be divided in two parts, 74 and 81722, that added together give a square (81796 = 286²).

The spelling of 7481722 in words is "seven million, four hundred eighty-one thousand, seven hundred twenty-two".