390397 has 8 divisors (see below), whose sum is σ = 456896. Its totient is φ = 326592.

The previous prime is 390391. The next prime is 390407. The reversal of 390397 is 793093.

390397 is nontrivially palindromic in base 6.

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

It is not a de Polignac number, because 390397 - 2³ = 390389 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 (390391) 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, 348 + ... + 949.

It is an arithmetic number, because the mean of its divisors is an integer number (57112).

2³⁹⁰³⁹⁷ is an apocalyptic number.

It is an amenable number.

390397 is a deficient number, since it is larger than the sum of its proper divisors (66499).

390397 is a wasteful number, since it uses less digits than its factorization.

390397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347.

The product of its (nonzero) digits is 5103, while the sum is 31.

The square root of 390397 is about 624.8175733764. The cubic root of 390397 is about 73.0862182650.

It can be divided in two parts, 390 and 397, that added together give a palindrome (787).

The spelling of 390397 in words is "three hundred ninety thousand, three hundred ninety-seven".