83966975 has 12 divisors (see below), whose sum is σ = 106659840. Its totient is φ = 65534400.

The previous prime is 83966969. The next prime is 83967007. The reversal of 83966975 is 57966938.

It is a de Polignac number, because none of the positive numbers 2^k-83966975 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39935 + ... + 41984.

It is an arithmetic number, because the mean of its divisors is an integer number (8888320).

Almost surely, 2^83966975 is an apocalyptic number.

83966975 is a deficient number, since it is larger than the sum of its proper divisors (22692865).

83966975 is a wasteful number, since it uses less digits than its factorization.

83966975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81970 (or 81965 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The square root of 83966975 is about 9163.3495513377. The cubic root of 83966975 is about 437.8945121720.

The spelling of 83966975 in words is "eighty-three million, nine hundred sixty-six thousand, nine hundred seventy-five".