390341591 has 2 divisors, whose sum is σ = 390341592. Its totient is φ = 390341590.

The previous prime is 390341587. The next prime is 390341593. The reversal of 390341591 is 195143093.

It is a strong prime.

It is an emirp because it is prime and its reverse (195143093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 390341591 - 2² = 390341587 is a prime.

It is a super-2 number, since 2×390341591² = 304733115328822562, which contains 22 as substring.

Together with 390341593, 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 (390341593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195170795 + 195170796.

It is an arithmetic number, because the mean of its divisors is an integer number (195170796).

Almost surely, 2^390341591 is an apocalyptic number.

390341591 is a deficient number, since it is larger than the sum of its proper divisors (1).

390341591 is an equidigital number, since it uses as much as digits as its factorization.

390341591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 390341591 is about 19757.0643315246. The cubic root of 390341591 is about 730.8276039533.

The spelling of 390341591 in words is "three hundred ninety million, three hundred forty-one thousand, five hundred ninety-one".