82673849 has 4 divisors (see below), whose sum is σ = 84029220. Its totient is φ = 81318480.

The previous prime is 82673831. The next prime is 82673861. The reversal of 82673849 is 94837628.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19360000 + 63313849 = 4400^2 + 7957^2 .

It is a cyclic number.

It is not a de Polignac number, because 82673849 - 2⁸ = 82673593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82673819) 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 3 ways as a sum of consecutive naturals, for example, 677594 + ... + 677715.

It is an arithmetic number, because the mean of its divisors is an integer number (21007305).

Almost surely, 2^82673849 is an apocalyptic number.

It is an amenable number.

82673849 is a deficient number, since it is larger than the sum of its proper divisors (1355371).

82673849 is a wasteful number, since it uses less digits than its factorization.

82673849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355370.

The product of its digits is 580608, while the sum is 47.

The square root of 82673849 is about 9092.5160984185. The cubic root of 82673849 is about 435.6349541751.

The spelling of 82673849 in words is "eighty-two million, six hundred seventy-three thousand, eight hundred forty-nine".