83408863 has 4 divisors (see below), whose sum is σ = 85348648. Its totient is φ = 81469080.

The previous prime is 83408861. The next prime is 83408869. The reversal of 83408863 is 36880438.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83408863 - 2¹ = 83408861 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 (83408861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 969828 + ... + 969913.

It is an arithmetic number, because the mean of its divisors is an integer number (21337162).

Almost surely, 2^83408863 is an apocalyptic number.

83408863 is a deficient number, since it is larger than the sum of its proper divisors (1939785).

83408863 is a wasteful number, since it uses less digits than its factorization.

83408863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939784.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 83408863 is about 9132.8452850139. The cubic root of 83408863 is about 436.9221550025.

The spelling of 83408863 in words is "eighty-three million, four hundred eight thousand, eight hundred sixty-three".