253680769 has 8 divisors (see below), whose sum is σ = 261999360. Its totient is φ = 245439216.

The previous prime is 253680727. The next prime is 253680773. The reversal of 253680769 is 967086352.

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

It is a cyclic number.

It is not a de Polignac number, because 253680769 - 2⁹ = 253680257 is a prime.

It is a super-2 number, since 2×253680769² = 128707865120862722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253680709) 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, 12529 + ... + 25774.

It is an arithmetic number, because the mean of its divisors is an integer number (32749920).

Almost surely, 2^253680769 is an apocalyptic number.

It is an amenable number.

253680769 is a deficient number, since it is larger than the sum of its proper divisors (8318591).

253680769 is a wasteful number, since it uses less digits than its factorization.

253680769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38519.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 253680769 is about 15927.3591345207. The cubic root of 253680769 is about 633.0371272003.

The spelling of 253680769 in words is "two hundred fifty-three million, six hundred eighty thousand, seven hundred sixty-nine".