390041807 has 2 divisors, whose sum is σ = 390041808. Its totient is φ = 390041806.

The previous prime is 390041801. The next prime is 390041809. The reversal of 390041807 is 708140093.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 390041807 - 2⁸ = 390041551 is a prime.

It is a super-2 number, since 2×390041807² = 304265222415650498, which contains 22 as substring.

Together with 390041809, 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 (390041801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195020903 + 195020904.

It is an arithmetic number, because the mean of its divisors is an integer number (195020904).

Almost surely, 2^390041807 is an apocalyptic number.

390041807 is a deficient number, since it is larger than the sum of its proper divisors (1).

390041807 is an equidigital number, since it uses as much as digits as its factorization.

390041807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 390041807 is about 19749.4761196342. The cubic root of 390041807 is about 730.6404631354.

The spelling of 390041807 in words is "three hundred ninety million, forty-one thousand, eight hundred seven".