83649933 has 12 divisors (see below), whose sum is σ = 124093788. Its totient is φ = 54259200.

The previous prime is 83649931. The next prime is 83649959. The reversal of 83649933 is 33994638.

It can be written as a sum of positive squares in 2 ways, for example, as 59028489 + 24621444 = 7683^2 + 4962^2 .

It is not a de Polignac number, because 83649933 - 2¹ = 83649931 is a prime.

It is a super-2 number, since 2×83649933² = 13994622581808978, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83649931) 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, 125268 + ... + 125933.

It is an arithmetic number, because the mean of its divisors is an integer number (10341149).

Almost surely, 2^83649933 is an apocalyptic number.

It is an amenable number.

83649933 is a deficient number, since it is larger than the sum of its proper divisors (40443855).

83649933 is a wasteful number, since it uses less digits than its factorization.

83649933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251244 (or 251241 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 83649933 is about 9146.0337305304. The cubic root of 83649933 is about 437.3426839017.

The spelling of 83649933 in words is "eighty-three million, six hundred forty-nine thousand, nine hundred thirty-three".