7499953 has 4 divisors (see below), whose sum is σ = 7509348. Its totient is φ = 7490560.

The previous prime is 7499939. The next prime is 7499969. The reversal of 7499953 is 3599947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3599947 = 13 ⋅276919.

It can be written as a sum of positive squares in 2 ways, for example, as 4787344 + 2712609 = 2188^2 + 1647^2 .

It is a cyclic number.

It is not a de Polignac number, because 7499953 - 2⁹ = 7499441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7499153) 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 3 ways as a sum of consecutive naturals, for example, 3376 + ... + 5137.

It is an arithmetic number, because the mean of its divisors is an integer number (1877337).

Almost surely, 2^7499953 is an apocalyptic number.

It is an amenable number.

7499953 is a deficient number, since it is larger than the sum of its proper divisors (9395).

7499953 is an equidigital number, since it uses as much as digits as its factorization.

7499953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9394.

The product of its digits is 306180, while the sum is 46.

The square root of 7499953 is about 2738.6042065257. The cubic root of 7499953 is about 195.7429731714.

The spelling of 7499953 in words is "seven million, four hundred ninety-nine thousand, nine hundred fifty-three".