404573173 has 2 divisors, whose sum is σ = 404573174. Its totient is φ = 404573172.

The previous prime is 404573161. The next prime is 404573177. The reversal of 404573173 is 371375404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236144689 + 168428484 = 15367^2 + 12978^2 .

It is a cyclic number.

It is not a de Polignac number, because 404573173 - 2²¹ = 402476021 is a prime.

It is a super-2 number, since 2×404573173² = 327358904622575858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404573177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202286586 + 202286587.

It is an arithmetic number, because the mean of its divisors is an integer number (202286587).

Almost surely, 2^404573173 is an apocalyptic number.

It is an amenable number.

404573173 is a deficient number, since it is larger than the sum of its proper divisors (1).

404573173 is an equidigital number, since it uses as much as digits as its factorization.

404573173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 404573173 is about 20114.0043999200. The cubic root of 404573173 is about 739.6036183707.

The spelling of 404573173 in words is "four hundred four million, five hundred seventy-three thousand, one hundred seventy-three".