83921433 has 16 divisors (see below), whose sum is σ = 115846656. Its totient is φ = 53982720.

The previous prime is 83921429. The next prime is 83921437. The reversal of 83921433 is 33412938.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83921429) and next prime (83921437).

It is not a de Polignac number, because 83921433 - 2² = 83921429 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83921394 and 83921403.

It is not an unprimeable number, because it can be changed into a prime (83921437) 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, 35785 + ... + 38057.

It is an arithmetic number, because the mean of its divisors is an integer number (7240416).

Almost surely, 2^83921433 is an apocalyptic number.

It is an amenable number.

83921433 is a deficient number, since it is larger than the sum of its proper divisors (31925223).

83921433 is a wasteful number, since it uses less digits than its factorization.

83921433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704.

The product of its digits is 15552, while the sum is 33.

The square root of 83921433 is about 9160.8642059579. The cubic root of 83921433 is about 437.8153294598.

The spelling of 83921433 in words is "eighty-three million, nine hundred twenty-one thousand, four hundred thirty-three".