83091347 has 8 divisors (see below), whose sum is σ = 85172736. Its totient is φ = 81023112.

The previous prime is 83091329. The next prime is 83091469. The reversal of 83091347 is 74319038.

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

It is a de Polignac number, because none of the positive numbers 2^k-83091347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83091317) 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, 10178 + ... + 16424.

It is an arithmetic number, because the mean of its divisors is an integer number (10646592).

Almost surely, 2^83091347 is an apocalyptic number.

83091347 is a deficient number, since it is larger than the sum of its proper divisors (2081389).

83091347 is a wasteful number, since it uses less digits than its factorization.

83091347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 83091347 is about 9115.4455184593. The cubic root of 83091347 is about 436.3670334029.

It can be divided in two parts, 83091 and 347, that added together give a palindrome (83438).

The spelling of 83091347 in words is "eighty-three million, ninety-one thousand, three hundred forty-seven".