83981068 has 6 divisors (see below), whose sum is σ = 146966876. Its totient is φ = 41990532.

The previous prime is 83981063. The next prime is 83981081. The reversal of 83981068 is 86018938.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (83981063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10497630 + ... + 10497637.

Almost surely, 2^83981068 is an apocalyptic number.

It is an amenable number.

83981068 is a deficient number, since it is larger than the sum of its proper divisors (62985808).

83981068 is a wasteful number, since it uses less digits than its factorization.

83981068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20995271 (or 20995269 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 83981068 is about 9164.1185064358. The cubic root of 83981068 is about 437.9190095102.

The spelling of 83981068 in words is "eighty-three million, nine hundred eighty-one thousand, sixty-eight".