981824433 has 16 divisors (see below), whose sum is σ = 1322956800. Its totient is φ = 647650640.

The previous prime is 981824429. The next prime is 981824479. The reversal of 981824433 is 334428189.

It is a cyclic number.

It is not a de Polignac number, because 981824433 - 2² = 981824429 is a prime.

It is not an unprimeable number, because it can be changed into a prime (981824413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137608 + ... + 144566.

It is an arithmetic number, because the mean of its divisors is an integer number (82684800).

Almost surely, 2^981824433 is an apocalyptic number.

It is an amenable number.

981824433 is a deficient number, since it is larger than the sum of its proper divisors (341132367).

981824433 is a wasteful number, since it uses less digits than its factorization.

981824433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7452.

The product of its digits is 165888, while the sum is 42.

The square root of 981824433 is about 31334.0778227156. The cubic root of 981824433 is about 993.9043967850.

The spelling of 981824433 in words is "nine hundred eighty-one million, eight hundred twenty-four thousand, four hundred thirty-three".