404719379 has 2 divisors, whose sum is σ = 404719380. Its totient is φ = 404719378.

The previous prime is 404719351. The next prime is 404719387. The reversal of 404719379 is 973917404.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404719379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (404719309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202359689 + 202359690.

It is an arithmetic number, because the mean of its divisors is an integer number (202359690).

Almost surely, 2^404719379 is an apocalyptic number.

404719379 is a deficient number, since it is larger than the sum of its proper divisors (1).

404719379 is an equidigital number, since it uses as much as digits as its factorization.

404719379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 404719379 is about 20117.6385045561. The cubic root of 404719379 is about 739.6927011131.

The spelling of 404719379 in words is "four hundred four million, seven hundred nineteen thousand, three hundred seventy-nine".