404951 has 2 divisors, whose sum is σ = 404952. Its totient is φ = 404950.

The previous prime is 404941. The next prime is 404959. The reversal of 404951 is 159404.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404951 - 2¹⁴ = 388567 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404959) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202475 + 202476.

It is an arithmetic number, because the mean of its divisors is an integer number (202476).

2⁴⁰⁴⁹⁵¹ is an apocalyptic number.

404951 is a deficient number, since it is larger than the sum of its proper divisors (1).

404951 is an equidigital number, since it uses as much as digits as its factorization.

404951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 404951 is about 636.3576038675. The cubic root of 404951 is about 73.9833782974.

The spelling of 404951 in words is "four hundred four thousand, nine hundred fifty-one".