434208993 has 4 divisors (see below), whose sum is σ = 578945328. Its totient is φ = 289472660.

The previous prime is 434208991. The next prime is 434209003. The reversal of 434208993 is 399802434.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 434208993 - 2¹ = 434208991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (434208991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72368163 + ... + 72368168.

It is an arithmetic number, because the mean of its divisors is an integer number (144736332).

Almost surely, 2^434208993 is an apocalyptic number.

It is an amenable number.

434208993 is a deficient number, since it is larger than the sum of its proper divisors (144736335).

434208993 is a wasteful number, since it uses less digits than its factorization.

434208993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144736334.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 434208993 is about 20837.6820447957. The cubic root of 434208993 is about 757.2389384569.

The spelling of 434208993 in words is "four hundred thirty-four million, two hundred eight thousand, nine hundred ninety-three".