409029913 has 2 divisors, whose sum is σ = 409029914. Its totient is φ = 409029912.

The previous prime is 409029823. The next prime is 409029917. The reversal of 409029913 is 319920904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252079129 + 156950784 = 15877^2 + 12528^2 .

It is a cyclic number.

It is not a de Polignac number, because 409029913 - 2²¹ = 406932761 is a prime.

It is not a weakly prime, because it can be changed into another prime (409029917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204514956 + 204514957.

It is an arithmetic number, because the mean of its divisors is an integer number (204514957).

Almost surely, 2^409029913 is an apocalyptic number.

It is an amenable number.

409029913 is a deficient number, since it is larger than the sum of its proper divisors (1).

409029913 is an equidigital number, since it uses as much as digits as its factorization.

409029913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 409029913 is about 20224.4879539631. The cubic root of 409029913 is about 742.3095079048.

The spelling of 409029913 in words is "four hundred nine million, twenty-nine thousand, nine hundred thirteen".