254384857 has 4 divisors (see below), whose sum is σ = 254422800. Its totient is φ = 254346916.

The previous prime is 254384849. The next prime is 254384891. The reversal of 254384857 is 758483452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 254384857 - 2³ = 254384849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254384827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5923 + ... + 23320.

It is an arithmetic number, because the mean of its divisors is an integer number (63605700).

Almost surely, 2^254384857 is an apocalyptic number.

It is an amenable number.

254384857 is a deficient number, since it is larger than the sum of its proper divisors (37943).

254384857 is an equidigital number, since it uses as much as digits as its factorization.

254384857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37942.

The product of its digits is 1075200, while the sum is 46.

The square root of 254384857 is about 15949.4469183104. The cubic root of 254384857 is about 633.6222485760.

The spelling of 254384857 in words is "two hundred fifty-four million, three hundred eighty-four thousand, eight hundred fifty-seven".