390704017 has 8 divisors (see below), whose sum is σ = 426412512. Its totient is φ = 355027200.

The previous prime is 390703981. The next prime is 390704021. The reversal of 390704017 is 710407093.

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

It is not a de Polignac number, because 390704017 - 2⁷ = 390703889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 390704017.

It is not an unprimeable number, because it can be changed into a prime (390704117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23217 + ... + 36337.

It is an arithmetic number, because the mean of its divisors is an integer number (53301564).

Almost surely, 2^390704017 is an apocalyptic number.

It is an amenable number.

390704017 is a deficient number, since it is larger than the sum of its proper divisors (35708495).

390704017 is a wasteful number, since it uses less digits than its factorization.

390704017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15839.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 390704017 is about 19766.2342645229. The cubic root of 390704017 is about 731.0537212801.

It can be divided in two parts, 390 and 704017, that added together give a palindrome (704407).

The spelling of 390704017 in words is "three hundred ninety million, seven hundred four thousand, seventeen".