253793897 has 8 divisors (see below), whose sum is σ = 291672000. Its totient is φ = 216321264.

The previous prime is 253793893. The next prime is 253793909. The reversal of 253793897 is 798397352.

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 253793897 - 2² = 253793893 is a prime.

It is a super-2 number, since 2×253793897² = 128822684308893218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253793893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100022 + ... + 102527.

It is an arithmetic number, because the mean of its divisors is an integer number (36459000).

Almost surely, 2^253793897 is an apocalyptic number.

It is an amenable number.

253793897 is a deficient number, since it is larger than the sum of its proper divisors (37878103).

253793897 is a wasteful number, since it uses less digits than its factorization.

253793897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202735.

The product of its digits is 2857680, while the sum is 53.

The square root of 253793897 is about 15930.9101121060. The cubic root of 253793897 is about 633.1312134039.

The spelling of 253793897 in words is "two hundred fifty-three million, seven hundred ninety-three thousand, eight hundred ninety-seven".