83791667 has 8 divisors (see below), whose sum is σ = 86604672. Its totient is φ = 80985600.

The previous prime is 83791651. The next prime is 83791681. The reversal of 83791667 is 76619738.

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 83791667 - 2⁴ = 83791651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83791637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36617 + ... + 38837.

It is an arithmetic number, because the mean of its divisors is an integer number (10825584).

Almost surely, 2^83791667 is an apocalyptic number.

83791667 is a deficient number, since it is larger than the sum of its proper divisors (2813005).

83791667 is a wasteful number, since it uses less digits than its factorization.

83791667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469.

The product of its digits is 381024, while the sum is 47.

The square root of 83791667 is about 9153.7788371798. The cubic root of 83791667 is about 437.5895514101.

The spelling of 83791667 in words is "eighty-three million, seven hundred ninety-one thousand, six hundred sixty-seven".