390233087 has 2 divisors, whose sum is σ = 390233088. Its totient is φ = 390233086.

The previous prime is 390233047. The next prime is 390233089. The reversal of 390233087 is 780332093.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 390233087 - 2¹⁶ = 390167551 is a prime.

Together with 390233089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390233089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195116543 + 195116544.

It is an arithmetic number, because the mean of its divisors is an integer number (195116544).

Almost surely, 2^390233087 is an apocalyptic number.

390233087 is a deficient number, since it is larger than the sum of its proper divisors (1).

390233087 is an equidigital number, since it uses as much as digits as its factorization.

390233087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 390233087 is about 19754.3181861587. The cubic root of 390233087 is about 730.7598811614.

The spelling of 390233087 in words is "three hundred ninety million, two hundred thirty-three thousand, eighty-seven".