83984895 has 12 divisors (see below), whose sum is σ = 145573896. Its totient is φ = 44791920.

The previous prime is 83984867. The next prime is 83984903. The reversal of 83984895 is 59848938.

It is a happy number.

It is not a de Polignac number, because 83984895 - 2⁷ = 83984767 is a prime.

It is a super-2 number, since 2×83984895² = 14106925176322050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 933121 + ... + 933210.

It is an arithmetic number, because the mean of its divisors is an integer number (12131158).

Almost surely, 2^83984895 is an apocalyptic number.

83984895 is a deficient number, since it is larger than the sum of its proper divisors (61589001).

83984895 is a wasteful number, since it uses less digits than its factorization.

83984895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866342 (or 1866339 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 83984895 is about 9164.3273075551. The cubic root of 83984895 is about 437.9256613689.

The spelling of 83984895 in words is "eighty-three million, nine hundred eighty-four thousand, eight hundred ninety-five".