389401 has 2 divisors, whose sum is σ = 389402. Its totient is φ = 389400.

The previous prime is 389399. The next prime is 389437. The reversal of 389401 is 104983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389376 + 25 = 624^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 389401 - 2¹ = 389399 is a prime.

Together with 389399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (389461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194700 + 194701.

It is an arithmetic number, because the mean of its divisors is an integer number (194701).

2³⁸⁹⁴⁰¹ is an apocalyptic number.

It is an amenable number.

389401 is a deficient number, since it is larger than the sum of its proper divisors (1).

389401 is an equidigital number, since it uses as much as digits as its factorization.

389401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 389401 is about 624.0200317298. The cubic root of 389401 is about 73.0240116169.

Subtracting from 389401 its sum of digits (25), we obtain a square (389376 = 624²).

The spelling of 389401 in words is "three hundred eighty-nine thousand, four hundred one".