83899841 has 4 divisors (see below), whose sum is σ = 85684992. Its totient is φ = 82114692.

The previous prime is 83899799. The next prime is 83899853. The reversal of 83899841 is 14899838.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83899841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83899841.

It is not an unprimeable number, because it can be changed into a prime (83899141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892505 + ... + 892598.

It is an arithmetic number, because the mean of its divisors is an integer number (21421248).

Almost surely, 2^83899841 is an apocalyptic number.

It is an amenable number.

83899841 is a deficient number, since it is larger than the sum of its proper divisors (1785151).

83899841 is a wasteful number, since it uses less digits than its factorization.

83899841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785150.

The product of its digits is 497664, while the sum is 50.

The square root of 83899841 is about 9159.6856387105. The cubic root of 83899841 is about 437.7777779901. Note that the first 6 decimals are identical.

The spelling of 83899841 in words is "eighty-three million, eight hundred ninety-nine thousand, eight hundred forty-one".