434981993 has 8 divisors (see below), whose sum is σ = 438022080. Its totient is φ = 431949040.

The previous prime is 434981977. The next prime is 434982007. The reversal of 434981993 is 399189434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 434981993 - 2⁴ = 434981977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (434981903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183371 + ... + 185727.

It is an arithmetic number, because the mean of its divisors is an integer number (54752760).

Almost surely, 2^434981993 is an apocalyptic number.

It is an amenable number.

434981993 is a deficient number, since it is larger than the sum of its proper divisors (3040087).

434981993 is a wasteful number, since it uses less digits than its factorization.

434981993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3567.

The product of its digits is 839808, while the sum is 50.

The square root of 434981993 is about 20856.2219253632. The cubic root of 434981993 is about 757.6880299454.

The spelling of 434981993 in words is "four hundred thirty-four million, nine hundred eighty-one thousand, nine hundred ninety-three".