7638572 has 24 divisors (see below), whose sum is σ = 13771296. Its totient is φ = 3705728.

The previous prime is 7638569. The next prime is 7638577. The reversal of 7638572 is 2758367.

It is a happy number.

It is a d-powerful number, because it can be written as 7⁵ + 6³ + 3¹³ + 8⁶ + 5² + 7⁸ + 2⁸ .

It is not an unprimeable number, because it can be changed into a prime (7638577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28913 + ... + 29175.

It is an arithmetic number, because the mean of its divisors is an integer number (573804).

Almost surely, 2^7638572 is an apocalyptic number.

It is an amenable number.

7638572 is a deficient number, since it is larger than the sum of its proper divisors (6132724).

7638572 is a wasteful number, since it uses less digits than its factorization.

7638572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 455 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 7638572 is about 2763.7966640113. The cubic root of 7638572 is about 196.9415683851.

The spelling of 7638572 in words is "seven million, six hundred thirty-eight thousand, five hundred seventy-two".