83866853 has 16 divisors (see below), whose sum is σ = 99555456. Its totient is φ = 69154560.

The previous prime is 83866843. The next prime is 83866883. The reversal of 83866853 is 35866838.

It is a cyclic number.

It is not a de Polignac number, because 83866853 - 2⁴ = 83866837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83866798 and 83866807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83866843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18950 + ... + 22952.

It is an arithmetic number, because the mean of its divisors is an integer number (6222216).

Almost surely, 2^83866853 is an apocalyptic number.

It is an amenable number.

83866853 is a deficient number, since it is larger than the sum of its proper divisors (15688603).

83866853 is a wasteful number, since it uses less digits than its factorization.

83866853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124.

The product of its digits is 829440, while the sum is 47.

The square root of 83866853 is about 9157.8847448524. The cubic root of 83866853 is about 437.7203948601.

The spelling of 83866853 in words is "eighty-three million, eight hundred sixty-six thousand, eight hundred fifty-three".