83649275 has 12 divisors (see below), whose sum is σ = 108235632. Its totient is φ = 64009440.

The previous prime is 83649271. The next prime is 83649329. The reversal of 83649275 is 57294638.

It is not a de Polignac number, because 83649275 - 2² = 83649271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83649271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72164 + ... + 73313.

It is an arithmetic number, because the mean of its divisors is an integer number (9019636).

Almost surely, 2^83649275 is an apocalyptic number.

83649275 is a deficient number, since it is larger than the sum of its proper divisors (24586357).

83649275 is a wasteful number, since it uses less digits than its factorization.

83649275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145510 (or 145505 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 83649275 is about 9145.9977585827. The cubic root of 83649275 is about 437.3415371694.

The spelling of 83649275 in words is "eighty-three million, six hundred forty-nine thousand, two hundred seventy-five".