406332357397 has 2 divisors, whose sum is σ = 406332357398. Its totient is φ = 406332357396.

The previous prime is 406332357383. The next prime is 406332357439. The reversal of 406332357397 is 793753233604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371970691236 + 34361666161 = 609894^2 + 185369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406332357397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406332457397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203166178698 + 203166178699.

It is an arithmetic number, because the mean of its divisors is an integer number (203166178699).

Almost surely, 2^406332357397 is an apocalyptic number.

It is an amenable number.

406332357397 is a deficient number, since it is larger than the sum of its proper divisors (1).

406332357397 is an equidigital number, since it uses as much as digits as its factorization.

406332357397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8573040, while the sum is 52.

The spelling of 406332357397 in words is "four hundred six billion, three hundred thirty-two million, three hundred fifty-seven thousand, three hundred ninety-seven".