84131766 has 24 divisors (see below), whose sum is σ = 185008824. Its totient is φ = 27624960.

The previous prime is 84131743. The next prime is 84131783. The reversal of 84131766 is 66713148.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84131766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33675 + ... + 36086.

It is an arithmetic number, because the mean of its divisors is an integer number (7708701).

Almost surely, 2^84131766 is an apocalyptic number.

84131766 is an abundant number, since it is smaller than the sum of its proper divisors (100877058).

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

84131766 is a wasteful number, since it uses less digits than its factorization.

84131766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69836 (or 69833 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 84131766 is about 9172.3369977340. The cubic root of 84131766 is about 438.1807910689.

The spelling of 84131766 in words is "eighty-four million, one hundred thirty-one thousand, seven hundred sixty-six".