860243253 has 8 divisors (see below), whose sum is σ = 1150656768. Its totient is φ = 571662624.

The previous prime is 860243233. The next prime is 860243257. The reversal of 860243253 is 352342068.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 860243253 - 2¹² = 860239157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860243257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457125 + ... + 459002.

It is an arithmetic number, because the mean of its divisors is an integer number (143832096).

Almost surely, 2^860243253 is an apocalyptic number.

It is an amenable number.

860243253 is a deficient number, since it is larger than the sum of its proper divisors (290413515).

860243253 is a wasteful number, since it uses less digits than its factorization.

860243253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916443.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 860243253 is about 29329.9037332208. The cubic root of 860243253 is about 951.0581940747.

The spelling of 860243253 in words is "eight hundred sixty million, two hundred forty-three thousand, two hundred fifty-three".