406593401 has 2 divisors, whose sum is σ = 406593402. Its totient is φ = 406593400.

The previous prime is 406593391. The next prime is 406593409. The reversal of 406593401 is 104395604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236421376 + 170172025 = 15376^2 + 13045^2 .

It is a cyclic number.

It is not a de Polignac number, because 406593401 - 2¹⁸ = 406331257 is a prime.

It is not a weakly prime, because it can be changed into another prime (406593409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203296700 + 203296701.

It is an arithmetic number, because the mean of its divisors is an integer number (203296701).

Almost surely, 2^406593401 is an apocalyptic number.

It is an amenable number.

406593401 is a deficient number, since it is larger than the sum of its proper divisors (1).

406593401 is an equidigital number, since it uses as much as digits as its factorization.

406593401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 406593401 is about 20164.1613016758. The cubic root of 406593401 is about 740.8326401994.

The spelling of 406593401 in words is "four hundred six million, five hundred ninety-three thousand, four hundred one".