434103991 has 2 divisors, whose sum is σ = 434103992. Its totient is φ = 434103990.

The previous prime is 434103983. The next prime is 434104007. The reversal of 434103991 is 199301434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 434103991 - 2³ = 434103983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434103911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217051995 + 217051996.

It is an arithmetic number, because the mean of its divisors is an integer number (217051996).

Almost surely, 2^434103991 is an apocalyptic number.

434103991 is a deficient number, since it is larger than the sum of its proper divisors (1).

434103991 is an equidigital number, since it uses as much as digits as its factorization.

434103991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 434103991 is about 20835.1623703776. The cubic root of 434103991 is about 757.1778941100.

The spelling of 434103991 in words is "four hundred thirty-four million, one hundred three thousand, nine hundred ninety-one".