238904899 has 2 divisors, whose sum is σ = 238904900. Its totient is φ = 238904898.

The previous prime is 238904863. The next prime is 238904903. The reversal of 238904899 is 998409832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238904899 - 2⁹ = 238904387 is a prime.

It is not a weakly prime, because it can be changed into another prime (238904839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119452449 + 119452450.

It is an arithmetic number, because the mean of its divisors is an integer number (119452450).

Almost surely, 2^238904899 is an apocalyptic number.

238904899 is a deficient number, since it is larger than the sum of its proper divisors (1).

238904899 is an equidigital number, since it uses as much as digits as its factorization.

238904899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The square root of 238904899 is about 15456.5487415529. The cubic root of 238904899 is about 620.4998561764.

The spelling of 238904899 in words is "two hundred thirty-eight million, nine hundred four thousand, eight hundred ninety-nine".