406774057 has 2 divisors, whose sum is σ = 406774058. Its totient is φ = 406774056.

The previous prime is 406774013. The next prime is 406774061. The reversal of 406774057 is 750477604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 355737321 + 51036736 = 18861^2 + 7144^2 .

It is a cyclic number.

It is not a de Polignac number, because 406774057 - 2¹⁵ = 406741289 is a prime.

It is not a weakly prime, because it can be changed into another prime (406774007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203387028 + 203387029.

It is an arithmetic number, because the mean of its divisors is an integer number (203387029).

Almost surely, 2^406774057 is an apocalyptic number.

It is an amenable number.

406774057 is a deficient number, since it is larger than the sum of its proper divisors (1).

406774057 is an equidigital number, since it uses as much as digits as its factorization.

406774057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164640, while the sum is 40.

The square root of 406774057 is about 20168.6404350913. The cubic root of 406774057 is about 740.9423452464.

The spelling of 406774057 in words is "four hundred six million, seven hundred seventy-four thousand, fifty-seven".