83212886 has 4 divisors (see below), whose sum is σ = 124819332. Its totient is φ = 41606442.

The previous prime is 83212867. The next prime is 83212907. The reversal of 83212886 is 68821238.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68821238 = 2 ⋅34410619.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20803220 + ... + 20803223.

It is an arithmetic number, because the mean of its divisors is an integer number (31204833).

Almost surely, 2^83212886 is an apocalyptic number.

83212886 is a deficient number, since it is larger than the sum of its proper divisors (41606446).

83212886 is a wasteful number, since it uses less digits than its factorization.

83212886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41606445.

The product of its digits is 36864, while the sum is 38.

The square root of 83212886 is about 9122.1097340473. The cubic root of 83212886 is about 436.5796900236.

The spelling of 83212886 in words is "eighty-three million, two hundred twelve thousand, eight hundred eighty-six".