406199903 has 2 divisors, whose sum is σ = 406199904. Its totient is φ = 406199902.

The previous prime is 406199863. The next prime is 406199933. The reversal of 406199903 is 309991604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406199903 - 2¹⁰ = 406198879 is a prime.

It is a super-2 number, since 2×406199903² = 329996722394418818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406199933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203099951 + 203099952.

It is an arithmetic number, because the mean of its divisors is an integer number (203099952).

Almost surely, 2^406199903 is an apocalyptic number.

406199903 is a deficient number, since it is larger than the sum of its proper divisors (1).

406199903 is an equidigital number, since it uses as much as digits as its factorization.

406199903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 406199903 is about 20154.4015788115. The cubic root of 406199903 is about 740.5935723292.

The spelling of 406199903 in words is "four hundred six million, one hundred ninety-nine thousand, nine hundred three".