7864253 has 2 divisors, whose sum is σ = 7864254. Its totient is φ = 7864252.

The previous prime is 7864247. The next prime is 7864277. The reversal of 7864253 is 3524687.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7689529 + 174724 = 2773^2 + 418^2 .

It is a cyclic number.

It is not a de Polignac number, because 7864253 - 2⁸ = 7863997 is a prime.

It is a d-powerful number, because it can be written as 7⁸ + 8 + 6² + 4³ + 2²¹ + 5 + 3⁷ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7864243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3932126 + 3932127.

It is an arithmetic number, because the mean of its divisors is an integer number (3932127).

Almost surely, 2^7864253 is an apocalyptic number.

It is an amenable number.

7864253 is a deficient number, since it is larger than the sum of its proper divisors (1).

7864253 is an equidigital number, since it uses as much as digits as its factorization.

7864253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 7864253 is about 2804.3275486291. The cubic root of 7864253 is about 198.8623156426.

The spelling of 7864253 in words is "seven million, eight hundred sixty-four thousand, two hundred fifty-three".