83871768 has 16 divisors (see below), whose sum is σ = 209679480. Its totient is φ = 27957248.

The previous prime is 83871737. The next prime is 83871787. The reversal of 83871768 is 86717838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1747305 + ... + 1747352.

Almost surely, 2^83871768 is an apocalyptic number.

It is an amenable number.

83871768 is an abundant number, since it is smaller than the sum of its proper divisors (125807712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83871768 is a wasteful number, since it uses less digits than its factorization.

83871768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494666 (or 3494662 counting only the distinct ones).

The product of its digits is 451584, while the sum is 48.

The square root of 83871768 is about 9158.1530889148. The cubic root of 83871768 is about 437.7289455315.

The spelling of 83871768 in words is "eighty-three million, eight hundred seventy-one thousand, seven hundred sixty-eight".