249904927 has 2 divisors, whose sum is σ = 249904928. Its totient is φ = 249904926.

The previous prime is 249904909. The next prime is 249904933. The reversal of 249904927 is 729409942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249904927 - 2¹⁵ = 249872159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249904937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124952463 + 124952464.

It is an arithmetic number, because the mean of its divisors is an integer number (124952464).

Almost surely, 2^249904927 is an apocalyptic number.

249904927 is a deficient number, since it is larger than the sum of its proper divisors (1).

249904927 is an equidigital number, since it uses as much as digits as its factorization.

249904927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 249904927 is about 15808.3815427133. The cubic root of 249904927 is about 629.8806585064.

The spelling of 249904927 in words is "two hundred forty-nine million, nine hundred four thousand, nine hundred twenty-seven".