83449861 has 8 divisors (see below), whose sum is σ = 93973248. Its totient is φ = 73416000.

The previous prime is 83449859. The next prime is 83449939. The reversal of 83449861 is 16894438.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83449861 - 2¹ = 83449859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83449831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122020 + ... + 122701.

It is an arithmetic number, because the mean of its divisors is an integer number (11746656).

Almost surely, 2^83449861 is an apocalyptic number.

It is an amenable number.

83449861 is a deficient number, since it is larger than the sum of its proper divisors (10523387).

83449861 is a wasteful number, since it uses less digits than its factorization.

83449861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244763.

The product of its digits is 165888, while the sum is 43.

The square root of 83449861 is about 9135.0895452645. The cubic root of 83449861 is about 436.9937301315.

It can be divided in two parts, 83 and 449861, that added together give a palindrome (449944).

The spelling of 83449861 in words is "eighty-three million, four hundred forty-nine thousand, eight hundred sixty-one".