406700093 has 2 divisors, whose sum is σ = 406700094. Its totient is φ = 406700092.

The previous prime is 406700057. The next prime is 406700113. The reversal of 406700093 is 390007604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394499044 + 12201049 = 19862^2 + 3493^2 .

It is a cyclic number.

It is not a de Polignac number, because 406700093 - 2⁶ = 406700029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406700023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203350046 + 203350047.

It is an arithmetic number, because the mean of its divisors is an integer number (203350047).

Almost surely, 2^406700093 is an apocalyptic number.

It is an amenable number.

406700093 is a deficient number, since it is larger than the sum of its proper divisors (1).

406700093 is an equidigital number, since it uses as much as digits as its factorization.

406700093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 406700093 is about 20166.8067130124. The cubic root of 406700093 is about 740.8974338428.

Adding to 406700093 its reverse (390007604), we get a palindrome (796707697).

The spelling of 406700093 in words is "four hundred six million, seven hundred thousand, ninety-three".