7472521 has 8 divisors (see below), whose sum is σ = 8576064. Its totient is φ = 6378000.

The previous prime is 7472513. The next prime is 7472533. The reversal of 7472521 is 1252747.

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

It is a cyclic number.

It is not a de Polignac number, because 7472521 - 2³ = 7472513 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 7472521.

It is not an unprimeable number, because it can be changed into a prime (7472221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370 + ... + 3883.

It is an arithmetic number, because the mean of its divisors is an integer number (1072008).

Almost surely, 2^7472521 is an apocalyptic number.

It is an amenable number.

7472521 is a deficient number, since it is larger than the sum of its proper divisors (1103543).

7472521 is a wasteful number, since it uses less digits than its factorization.

7472521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511.

The product of its digits is 3920, while the sum is 28.

The square root of 7472521 is about 2733.5912276710. The cubic root of 7472521 is about 195.5040302848.

It can be divided in two parts, 747252 and 1, that added together give a triangular number (747253 = T₁₂₂₂).

The spelling of 7472521 in words is "seven million, four hundred seventy-two thousand, five hundred twenty-one".