7628722 has 4 divisors (see below), whose sum is σ = 11443086. Its totient is φ = 3814360.

The previous prime is 7628717. The next prime is 7628723. The reversal of 7628722 is 2278267.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2278267 = 83 ⋅27449.

It can be written as a sum of positive squares in only one way, i.e., 7612081 + 16641 = 2759^2 + 129^2 .

It is a d-powerful number, because it can be written as 7⁶ + 6⁸ + 2⁵ + 8² + 7⁸ + 2¹⁰ + 2¹⁶ .

It is not an unprimeable number, because it can be changed into a prime (7628723) 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 as a sum of consecutive naturals, namely, 1907179 + ... + 1907182.

Almost surely, 2^7628722 is an apocalyptic number.

7628722 is a deficient number, since it is larger than the sum of its proper divisors (3814364).

7628722 is a wasteful number, since it uses less digits than its factorization.

7628722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814363.

The product of its digits is 18816, while the sum is 34.

The square root of 7628722 is about 2762.0141201667. The cubic root of 7628722 is about 196.8568793938.

The spelling of 7628722 in words is "seven million, six hundred twenty-eight thousand, seven hundred twenty-two".