409003423 has 2 divisors, whose sum is σ = 409003424. Its totient is φ = 409003422.

The previous prime is 409003409. The next prime is 409003489. The reversal of 409003423 is 324300904.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409003423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409003123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204501711 + 204501712.

It is an arithmetic number, because the mean of its divisors is an integer number (204501712).

Almost surely, 2^409003423 is an apocalyptic number.

409003423 is a deficient number, since it is larger than the sum of its proper divisors (1).

409003423 is an equidigital number, since it uses as much as digits as its factorization.

409003423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 409003423 is about 20223.8330442080. The cubic root of 409003423 is about 742.2934828312.

The spelling of 409003423 in words is "four hundred nine million, three thousand, four hundred twenty-three".