82671619 has 8 divisors (see below), whose sum is σ = 84188160. Its totient is φ = 81165000.

The previous prime is 82671613. The next prime is 82671623. The reversal of 82671619 is 91617628.

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 82671619 - 2¹⁵ = 82638851 is a prime.

It is a super-2 number, since 2×82671619² = 13669193176162322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82671613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15502 + ... + 20140.

It is an arithmetic number, because the mean of its divisors is an integer number (10523520).

Almost surely, 2^82671619 is an apocalyptic number.

82671619 is a deficient number, since it is larger than the sum of its proper divisors (1516541).

82671619 is a wasteful number, since it uses less digits than its factorization.

82671619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4961.

The product of its digits is 36288, while the sum is 40.

The square root of 82671619 is about 9092.3934692687. The cubic root of 82671619 is about 435.6310372787.

The spelling of 82671619 in words is "eighty-two million, six hundred seventy-one thousand, six hundred nineteen".