390953 has 2 divisors, whose sum is σ = 390954. Its totient is φ = 390952.

The previous prime is 390893. The next prime is 390959. The reversal of 390953 is 359093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316969 + 73984 = 563^2 + 272^2 .

It is a cyclic number.

It is not a de Polignac number, because 390953 - 2⁶ = 390889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (390959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195476 + 195477.

It is an arithmetic number, because the mean of its divisors is an integer number (195477).

2³⁹⁰⁹⁵³ is an apocalyptic number.

It is an amenable number.

390953 is a deficient number, since it is larger than the sum of its proper divisors (1).

390953 is an equidigital number, since it uses as much as digits as its factorization.

390953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3645, while the sum is 29.

The square root of 390953 is about 625.2623449401. The cubic root of 390953 is about 73.1208980581.

The spelling of 390953 in words is "three hundred ninety thousand, nine hundred fifty-three".