83966845 has 8 divisors (see below), whose sum is σ = 100913976. Its totient is φ = 67070976.

The previous prime is 83966837. The next prime is 83966881. The reversal of 83966845 is 54866938.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9903609 + 74063236 = 3147^2 + 8606^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83966845 - 2³ = 83966837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9112 + ... + 15841.

It is an arithmetic number, because the mean of its divisors is an integer number (12614247).

Almost surely, 2^83966845 is an apocalyptic number.

It is an amenable number.

83966845 is a deficient number, since it is larger than the sum of its proper divisors (16947131).

83966845 is a wasteful number, since it uses less digits than its factorization.

83966845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25631.

The product of its digits is 1244160, while the sum is 49.

The square root of 83966845 is about 9163.3424578589. The cubic root of 83966845 is about 437.8942861851.

The spelling of 83966845 in words is "eighty-three million, nine hundred sixty-six thousand, eight hundred forty-five".