867939253 has 2 divisors, whose sum is σ = 867939254. Its totient is φ = 867939252.

The previous prime is 867939179. The next prime is 867939269. The reversal of 867939253 is 352939768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 779917329 + 88021924 = 27927^2 + 9382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-867939253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 867939253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867939283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433969626 + 433969627.

It is an arithmetic number, because the mean of its divisors is an integer number (433969627).

Almost surely, 2^867939253 is an apocalyptic number.

It is an amenable number.

867939253 is a deficient number, since it is larger than the sum of its proper divisors (1).

867939253 is an equidigital number, since it uses as much as digits as its factorization.

867939253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 52.

The square root of 867939253 is about 29460.8087635082. The cubic root of 867939253 is about 953.8859309370.

The spelling of 867939253 in words is "eight hundred sixty-seven million, nine hundred thirty-nine thousand, two hundred fifty-three".