404980523 has 2 divisors, whose sum is σ = 404980524. Its totient is φ = 404980522.

The previous prime is 404980483. The next prime is 404980549. The reversal of 404980523 is 325089404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404980523 - 2¹² = 404976427 is a prime.

It is equal to p_21587606 and since 404980523 and 21587606 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (404980553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202490261 + 202490262.

It is an arithmetic number, because the mean of its divisors is an integer number (202490262).

Almost surely, 2^404980523 is an apocalyptic number.

404980523 is a deficient number, since it is larger than the sum of its proper divisors (1).

404980523 is an equidigital number, since it uses as much as digits as its factorization.

404980523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 404980523 is about 20124.1278817245. The cubic root of 404980523 is about 739.8517617602.

The spelling of 404980523 in words is "four hundred four million, nine hundred eighty thousand, five hundred twenty-three".