83676991 has 8 divisors (see below), whose sum is σ = 84347424. Its totient is φ = 83009760.

The previous prime is 83676949. The next prime is 83677003. The reversal of 83676991 is 19967638.

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 83676991 - 2¹⁹ = 83152703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83676391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80646 + ... + 81676.

It is an arithmetic number, because the mean of its divisors is an integer number (10543428).

Almost surely, 2^83676991 is an apocalyptic number.

83676991 is a deficient number, since it is larger than the sum of its proper divisors (670433).

83676991 is a wasteful number, since it uses less digits than its factorization.

83676991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601.

The product of its digits is 489888, while the sum is 49.

The square root of 83676991 is about 9147.5128313657. The cubic root of 83676991 is about 437.3898341393.

The spelling of 83676991 in words is "eighty-three million, six hundred seventy-six thousand, nine hundred ninety-one".