254640847 has 8 divisors (see below), whose sum is σ = 257406336. Its totient is φ = 251882712.

The previous prime is 254640839. The next prime is 254640899. The reversal of 254640847 is 748046452.

It is a happy number.

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 254640847 - 2³ = 254640839 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 (254640247) 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, 93568 + ... + 96250.

It is an arithmetic number, because the mean of its divisors is an integer number (32175792).

Almost surely, 2^254640847 is an apocalyptic number.

254640847 is a deficient number, since it is larger than the sum of its proper divisors (2765489).

254640847 is a wasteful number, since it uses less digits than its factorization.

254640847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677.

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 254640847 is about 15957.4699435719. The cubic root of 254640847 is about 633.8347174360.

The spelling of 254640847 in words is "two hundred fifty-four million, six hundred forty thousand, eight hundred forty-seven".