83923147 has 16 divisors (see below), whose sum is σ = 104832000. Its totient is φ = 65269440.

The previous prime is 83923127. The next prime is 83923157. The reversal of 83923147 is 74132938.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83923147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83923117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79479 + ... + 80527.

It is an arithmetic number, because the mean of its divisors is an integer number (6552000).

Almost surely, 2^83923147 is an apocalyptic number.

83923147 is a deficient number, since it is larger than the sum of its proper divisors (20908853).

83923147 is a wasteful number, since it uses less digits than its factorization.

83923147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106.

The product of its digits is 36288, while the sum is 37.

The square root of 83923147 is about 9160.9577556061. The cubic root of 83923147 is about 437.8183100666.

The spelling of 83923147 in words is "eighty-three million, nine hundred twenty-three thousand, one hundred forty-seven".