83389647 has 8 divisors (see below), whose sum is σ = 121294080. Its totient is φ = 50539160.

The previous prime is 83389577. The next prime is 83389667. The reversal of 83389647 is 74698338.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83389647 - 2⁸ = 83389391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83389596 and 83389605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83389667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263447 + ... + 1263512.

It is an arithmetic number, because the mean of its divisors is an integer number (15161760).

Almost surely, 2^83389647 is an apocalyptic number.

83389647 is a deficient number, since it is larger than the sum of its proper divisors (37904433).

83389647 is a wasteful number, since it uses less digits than its factorization.

83389647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526973.

The product of its digits is 870912, while the sum is 48.

The square root of 83389647 is about 9131.7931973956. The cubic root of 83389647 is about 436.8885992521. Note that the first 3 decimals are identical.

The spelling of 83389647 in words is "eighty-three million, three hundred eighty-nine thousand, six hundred forty-seven".