7495021 has 4 divisors (see below), whose sum is σ = 7753500. Its totient is φ = 7236544.

The previous prime is 7495013. The next prime is 7495039. The reversal of 7495021 is 1205947.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1590121 + 5904900 = 1261^2 + 2430^2 .

It is not a de Polignac number, because 7495021 - 2³ = 7495013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7495051) 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, 129196 + ... + 129253.

It is an arithmetic number, because the mean of its divisors is an integer number (1938375).

Almost surely, 2^7495021 is an apocalyptic number.

It is an amenable number.

7495021 is a deficient number, since it is larger than the sum of its proper divisors (258479).

7495021 is a wasteful number, since it uses less digits than its factorization.

7495021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258478.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 7495021 is about 2737.7035997346. The cubic root of 7495021 is about 195.7000566341.

The spelling of 7495021 in words is "seven million, four hundred ninety-five thousand, twenty-one".