390775065 has 8 divisors (see below), whose sum is σ = 625240128. Its totient is φ = 208413360.

The previous prime is 390775031. The next prime is 390775069. The reversal of 390775065 is 560577093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 390775065 - 2¹⁴ = 390758681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (390775069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13025821 + ... + 13025850.

It is an arithmetic number, because the mean of its divisors is an integer number (78155016).

Almost surely, 2^390775065 is an apocalyptic number.

It is an amenable number.

390775065 is a deficient number, since it is larger than the sum of its proper divisors (234465063).

390775065 is a wasteful number, since it uses less digits than its factorization.

390775065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26051679.

The product of its (nonzero) digits is 198450, while the sum is 42.

The square root of 390775065 is about 19768.0313890888. The cubic root of 390775065 is about 731.0980316826.

The spelling of 390775065 in words is "three hundred ninety million, seven hundred seventy-five thousand, sixty-five".