82049651 has 4 divisors (see below), whose sum is σ = 84050904. Its totient is φ = 80048400.

The previous prime is 82049647. The next prime is 82049663. The reversal of 82049651 is 15694028.

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

It is not a de Polignac number, because 82049651 - 2² = 82049647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82049621) 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 3 ways as a sum of consecutive naturals, for example, 1000565 + ... + 1000646.

It is an arithmetic number, because the mean of its divisors is an integer number (21012726).

Almost surely, 2^82049651 is an apocalyptic number.

82049651 is a deficient number, since it is larger than the sum of its proper divisors (2001253).

82049651 is a wasteful number, since it uses less digits than its factorization.

82049651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001252.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 82049651 is about 9058.1262411163. The cubic root of 82049651 is about 434.5358170028.

The spelling of 82049651 in words is "eighty-two million, forty-nine thousand, six hundred fifty-one".