395491 has 2 divisors, whose sum is σ = 395492. Its totient is φ = 395490.

The previous prime is 395459. The next prime is 395509. The reversal of 395491 is 194593.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 395491 - 2⁵ = 395459 is a prime.

It is not a weakly prime, because it can be changed into another prime (395431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197745 + 197746.

It is an arithmetic number, because the mean of its divisors is an integer number (197746).

2³⁹⁵⁴⁹¹ is an apocalyptic number.

395491 is a deficient number, since it is larger than the sum of its proper divisors (1).

395491 is an equidigital number, since it uses as much as digits as its factorization.

395491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 31.

The square root of 395491 is about 628.8807518123. The cubic root of 395491 is about 73.4027281590.

The spelling of 395491 in words is "three hundred ninety-five thousand, four hundred ninety-one".