434243997 has 40 divisors (see below), whose sum is σ = 724977792. Its totient is φ = 256737600.

The previous prime is 434243987. The next prime is 434244007. The reversal of 434243997 is 799342434.

It is an interprime number because it is at equal distance from previous prime (434243987) and next prime (434244007).

It is not a de Polignac number, because 434243997 - 2⁴ = 434243981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434243947) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30588 + ... + 42474.

Almost surely, 2^434243997 is an apocalyptic number.

It is an amenable number.

434243997 is a deficient number, since it is larger than the sum of its proper divisors (290733795).

434243997 is a wasteful number, since it uses less digits than its factorization.

434243997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11951 (or 11942 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 434243997 is about 20838.5219485452. The cubic root of 434243997 is about 757.2592863232.

The spelling of 434243997 in words is "four hundred thirty-four million, two hundred forty-three thousand, nine hundred ninety-seven".