406670057 has 2 divisors, whose sum is σ = 406670058. Its totient is φ = 406670056.

The previous prime is 406670023. The next prime is 406670063. The reversal of 406670057 is 750076604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372142681 + 34527376 = 19291^2 + 5876^2 .

It is a cyclic number.

It is not a de Polignac number, because 406670057 - 2⁶ = 406669993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 406669999 and 406670026.

It is not a weakly prime, because it can be changed into another prime (406670557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203335028 + 203335029.

It is an arithmetic number, because the mean of its divisors is an integer number (203335029).

Almost surely, 2^406670057 is an apocalyptic number.

It is an amenable number.

406670057 is a deficient number, since it is larger than the sum of its proper divisors (1).

406670057 is an equidigital number, since it uses as much as digits as its factorization.

406670057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 406670057 is about 20166.0620102191. The cubic root of 406670057 is about 740.8791942411.

The spelling of 406670057 in words is "four hundred six million, six hundred seventy thousand, fifty-seven".