8621253 has 6 divisors (see below), whose sum is σ = 12452934. Its totient is φ = 5747496.

The previous prime is 8621243. The next prime is 8621281. The reversal of 8621253 is 3521268.

It can be written as a sum of positive squares in only one way, i.e., 8054244 + 567009 = 2838^2 + 753^2 .

It is not a de Polignac number, because 8621253 - 2⁴ = 8621237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8621213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 478950 + ... + 478967.

It is an arithmetic number, because the mean of its divisors is an integer number (2075489).

Almost surely, 2^8621253 is an apocalyptic number.

It is an amenable number.

8621253 is a deficient number, since it is larger than the sum of its proper divisors (3831681).

8621253 is a wasteful number, since it uses less digits than its factorization.

8621253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957923 (or 957920 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 8621253 is about 2936.1970301736. The cubic root of 8621253 is about 205.0485944685.

The spelling of 8621253 in words is "eight million, six hundred twenty-one thousand, two hundred fifty-three".