7917253 has 2 divisors, whose sum is σ = 7917254. Its totient is φ = 7917252.

The previous prime is 7917241. The next prime is 7917263. The reversal of 7917253 is 3527197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7851204 + 66049 = 2802^2 + 257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7917253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7917263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3958626 + 3958627.

It is an arithmetic number, because the mean of its divisors is an integer number (3958627).

Almost surely, 2^7917253 is an apocalyptic number.

It is an amenable number.

7917253 is a deficient number, since it is larger than the sum of its proper divisors (1).

7917253 is an equidigital number, since it uses as much as digits as its factorization.

7917253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13230, while the sum is 34.

The square root of 7917253 is about 2813.7613615941. The cubic root of 7917253 is about 199.3080504567.

It can be divided in two parts, 7917 and 253, that multiplied together give a triangular number (2003001 = T₂₀₀₁).

The spelling of 7917253 in words is "seven million, nine hundred seventeen thousand, two hundred fifty-three".