253764389 has 16 divisors (see below), whose sum is σ = 276883200. Its totient is φ = 231600384.

The previous prime is 253764383. The next prime is 253764397. The reversal of 253764389 is 983467352.

It is a happy number.

It is not a de Polignac number, because 253764389 - 2⁴ = 253764373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253764383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275672 + ... + 276590.

It is an arithmetic number, because the mean of its divisors is an integer number (17305200).

Almost surely, 2^253764389 is an apocalyptic number.

It is an amenable number.

253764389 is a deficient number, since it is larger than the sum of its proper divisors (23118811).

253764389 is a wasteful number, since it uses less digits than its factorization.

253764389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412.

The product of its digits is 1088640, while the sum is 47.

The square root of 253764389 is about 15929.9839610716. The cubic root of 253764389 is about 633.1066749100.

The spelling of 253764389 in words is "two hundred fifty-three million, seven hundred sixty-four thousand, three hundred eighty-nine".