406072873 has 2 divisors, whose sum is σ = 406072874. Its totient is φ = 406072872.

The previous prime is 406072867. The next prime is 406072907. The reversal of 406072873 is 378270604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398521369 + 7551504 = 19963^2 + 2748^2 .

It is a cyclic number.

It is not a de Polignac number, because 406072873 - 2⁵ = 406072841 is a prime.

It is not a weakly prime, because it can be changed into another prime (406072573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203036436 + 203036437.

It is an arithmetic number, because the mean of its divisors is an integer number (203036437).

Almost surely, 2^406072873 is an apocalyptic number.

It is an amenable number.

406072873 is a deficient number, since it is larger than the sum of its proper divisors (1).

406072873 is an equidigital number, since it uses as much as digits as its factorization.

406072873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 406072873 is about 20151.2499116060. The cubic root of 406072873 is about 740.5163628819.

The spelling of 406072873 in words is "four hundred six million, seventy-two thousand, eight hundred seventy-three".