253698087 has 8 divisors (see below), whose sum is σ = 338944000. Its totient is φ = 168792120.

The previous prime is 253698083. The next prime is 253698101. The reversal of 253698087 is 780896352.

253698087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 253698087 - 2² = 253698083 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 (253698083) 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, 83239 + ... + 86232.

It is an arithmetic number, because the mean of its divisors is an integer number (42368000).

Almost surely, 2^253698087 is an apocalyptic number.

253698087 is a deficient number, since it is larger than the sum of its proper divisors (85245913).

253698087 is a wasteful number, since it uses less digits than its factorization.

253698087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169973.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 253698087 is about 15927.9027809690. The cubic root of 253698087 is about 633.0515320335.

The spelling of 253698087 in words is "two hundred fifty-three million, six hundred ninety-eight thousand, eighty-seven".