390601 has 4 divisors (see below), whose sum is σ = 404100. Its totient is φ = 377104.

The previous prime is 390581. The next prime is 390647. The reversal of 390601 is 106093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106093 = 13 ⋅8161.

It can be written as a sum of positive squares in 2 ways, for example, as 226576 + 164025 = 476^2 + 405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6706 + ... + 6763.

It is an arithmetic number, because the mean of its divisors is an integer number (101025).

2³⁹⁰⁶⁰¹ is an apocalyptic number.

390601 is the 280-th centered decagonal number.

It is an amenable number.

390601 is a deficient number, since it is larger than the sum of its proper divisors (13499).

390601 is a wasteful number, since it uses less digits than its factorization.

390601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13498.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 390601 is about 624.9807997051. The cubic root of 390601 is about 73.0989463276.

Adding to 390601 its reverse (106093), we get a palindrome (496694).

The spelling of 390601 in words is "three hundred ninety thousand, six hundred one".