390431173 has 8 divisors (see below), whose sum is σ = 427511520. Its totient is φ = 353615280.

The previous prime is 390431161. The next prime is 390431183. The reversal of 390431173 is 371134093.

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

It is a cyclic number.

It is not a de Polignac number, because 390431173 - 2¹⁷ = 390300101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390431113) 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, 63015 + ... + 68932.

It is an arithmetic number, because the mean of its divisors is an integer number (53438940).

Almost surely, 2^390431173 is an apocalyptic number.

It is an amenable number.

390431173 is a deficient number, since it is larger than the sum of its proper divisors (37080347).

390431173 is a wasteful number, since it uses less digits than its factorization.

390431173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132227.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 390431173 is about 19759.3312892922. The cubic root of 390431173 is about 730.8835071180.

The spelling of 390431173 in words is "three hundred ninety million, four hundred thirty-one thousand, one hundred seventy-three".