83961823 has 8 divisors (see below), whose sum is σ = 91808640. Its totient is φ = 76150680.

The previous prime is 83961797. The next prime is 83961853. The reversal of 83961823 is 32816938.

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 83961823 - 2²⁵ = 50407391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83961853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3865 + ... + 13522.

It is an arithmetic number, because the mean of its divisors is an integer number (11476080).

Almost surely, 2^83961823 is an apocalyptic number.

83961823 is a deficient number, since it is larger than the sum of its proper divisors (7846817).

83961823 is a wasteful number, since it uses less digits than its factorization.

83961823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17837.

The product of its digits is 62208, while the sum is 40.

The square root of 83961823 is about 9163.0684271154. The cubic root of 83961823 is about 437.8855559577.

The spelling of 83961823 in words is "eighty-three million, nine hundred sixty-one thousand, eight hundred twenty-three".