83866879 has 8 divisors (see below), whose sum is σ = 85363488. Its totient is φ = 82383360.

The previous prime is 83866843. The next prime is 83866883. The reversal of 83866879 is 97866838.

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 83866879 - 2⁷ = 83866751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83866819) 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, 10134 + ... + 16444.

It is an arithmetic number, because the mean of its divisors is an integer number (10670436).

Almost surely, 2^83866879 is an apocalyptic number.

83866879 is a deficient number, since it is larger than the sum of its proper divisors (1496609).

83866879 is a wasteful number, since it uses less digits than its factorization.

83866879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6545.

The product of its digits is 3483648, while the sum is 55.

The square root of 83866879 is about 9157.8861643941. The cubic root of 83866879 is about 437.7204400934.

The spelling of 83866879 in words is "eighty-three million, eight hundred sixty-six thousand, eight hundred seventy-nine".