434320999 has 4 divisors (see below), whose sum is σ = 496366864. Its totient is φ = 372275136.

The previous prime is 434320993. The next prime is 434321009. The reversal of 434320999 is 999023434.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 434320999 - 2⁷ = 434320871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434320993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31022922 + ... + 31022935.

It is an arithmetic number, because the mean of its divisors is an integer number (124091716).

Almost surely, 2^434320999 is an apocalyptic number.

434320999 is a deficient number, since it is larger than the sum of its proper divisors (62045865).

434320999 is an equidigital number, since it uses as much as digits as its factorization.

434320999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62045864.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 434320999 is about 20840.3694544986. The cubic root of 434320999 is about 757.3040438279.

The spelling of 434320999 in words is "four hundred thirty-four million, three hundred twenty thousand, nine hundred ninety-nine".