83870433 has 12 divisors (see below), whose sum is σ = 123432660. Its totient is φ = 54858336.

The previous prime is 83870431. The next prime is 83870467. The reversal of 83870433 is 33407838.

It can be written as a sum of positive squares in 2 ways, for example, as 20142144 + 63728289 = 4488^2 + 7983^2 .

It is not a de Polignac number, because 83870433 - 2¹ = 83870431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83870431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87438 + ... + 88391.

It is an arithmetic number, because the mean of its divisors is an integer number (10286055).

Almost surely, 2^83870433 is an apocalyptic number.

It is an amenable number.

83870433 is a deficient number, since it is larger than the sum of its proper divisors (39562227).

83870433 is a wasteful number, since it uses less digits than its factorization.

83870433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175888 (or 175885 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 83870433 is about 9158.0802027499. The cubic root of 83870433 is about 437.7266230526.

The spelling of 83870433 in words is "eighty-three million, eight hundred seventy thousand, four hundred thirty-three".