253940847 has 8 divisors (see below), whose sum is σ = 338684160. Its totient is φ = 169245720.

The previous prime is 253940807. The next prime is 253940851. The reversal of 253940847 is 748049352.

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

It is not a de Polignac number, because 253940847 - 2⁸ = 253940591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253940799 and 253940808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253940807) 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, 2904 + ... + 22722.

It is an arithmetic number, because the mean of its divisors is an integer number (42335520).

Almost surely, 2^253940847 is an apocalyptic number.

253940847 is a deficient number, since it is larger than the sum of its proper divisors (84743313).

253940847 is a wasteful number, since it uses less digits than its factorization.

253940847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24093.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 253940847 is about 15935.5215477875. The cubic root of 253940847 is about 633.2533869232.

The spelling of 253940847 in words is "two hundred fifty-three million, nine hundred forty thousand, eight hundred forty-seven".