83984970 has 16 divisors (see below), whose sum is σ = 201564000. Its totient is φ = 22395984.

The previous prime is 83984903. The next prime is 83984987. The reversal of 83984970 is 7948938.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1399720 + ... + 1399779.

It is an arithmetic number, because the mean of its divisors is an integer number (12597750).

Almost surely, 2^83984970 is an apocalyptic number.

83984970 is an abundant number, since it is smaller than the sum of its proper divisors (117579030).

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

83984970 is a wasteful number, since it uses less digits than its factorization.

83984970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799509.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 83984970 is about 9164.3313995075. The cubic root of 83984970 is about 437.9257917273.

The spelling of 83984970 in words is "eighty-three million, nine hundred eighty-four thousand, nine hundred seventy".