7504745 has 8 divisors (see below), whose sum is σ = 9020616. Its totient is φ = 5993856.

The previous prime is 7504733. The next prime is 7504751. The reversal of 7504745 is 5474057.

It can be written as a sum of positive squares in 4 ways, for example, as 4857616 + 2647129 = 2204^2 + 1627^2 .

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 7504745 - 2⁴ = 7504729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 4439 + ... + 5891.

It is an arithmetic number, because the mean of its divisors is an integer number (1127577).

Almost surely, 2^7504745 is an apocalyptic number.

It is an amenable number.

7504745 is a deficient number, since it is larger than the sum of its proper divisors (1515871).

7504745 is a wasteful number, since it uses less digits than its factorization.

7504745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 7504745 is about 2739.4789650589. The cubic root of 7504745 is about 195.7846534603.

The spelling of 7504745 in words is "seven million, five hundred four thousand, seven hundred forty-five".