406363649 has 2 divisors, whose sum is σ = 406363650. Its totient is φ = 406363648.

The previous prime is 406363619. The next prime is 406363673. The reversal of 406363649 is 946363604.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 402283249 + 4080400 = 20057^2 + 2020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406363649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (406363619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203181824 + 203181825.

It is an arithmetic number, because the mean of its divisors is an integer number (203181825).

Almost surely, 2^406363649 is an apocalyptic number.

It is an amenable number.

406363649 is a deficient number, since it is larger than the sum of its proper divisors (1).

406363649 is an equidigital number, since it uses as much as digits as its factorization.

406363649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 41.

The square root of 406363649 is about 20158.4634583095. The cubic root of 406363649 is about 740.6930741941.

The spelling of 406363649 in words is "four hundred six million, three hundred sixty-three thousand, six hundred forty-nine".