749670253 has 2 divisors, whose sum is σ = 749670254. Its totient is φ = 749670252.

The previous prime is 749670239. The next prime is 749670269. The reversal of 749670253 is 352076947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 445969924 + 303700329 = 21118^2 + 17427^2 .

It is a cyclic number.

It is not a de Polignac number, because 749670253 - 2⁵ = 749670221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749670293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374835126 + 374835127.

It is an arithmetic number, because the mean of its divisors is an integer number (374835127).

Almost surely, 2^749670253 is an apocalyptic number.

It is an amenable number.

749670253 is a deficient number, since it is larger than the sum of its proper divisors (1).

749670253 is an equidigital number, since it uses as much as digits as its factorization.

749670253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 749670253 is about 27380.1068843787. The cubic root of 749670253 is about 908.4271235495.

The spelling of 749670253 in words is "seven hundred forty-nine million, six hundred seventy thousand, two hundred fifty-three".