82004651 has 4 divisors (see below), whose sum is σ = 86828472. Its totient is φ = 77180832.

The previous prime is 82004603. The next prime is 82004653. The reversal of 82004651 is 15640028.

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

It is a cyclic number.

It is not a de Polignac number, because 82004651 - 2¹⁰ = 82003627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82004651.

It is not an unprimeable number, because it can be changed into a prime (82004653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2411885 + ... + 2411918.

It is an arithmetic number, because the mean of its divisors is an integer number (21707118).

Almost surely, 2^82004651 is an apocalyptic number.

82004651 is a deficient number, since it is larger than the sum of its proper divisors (4823821).

82004651 is a wasteful number, since it uses less digits than its factorization.

82004651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823820.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 82004651 is about 9055.6419430099. The cubic root of 82004651 is about 434.4563623173.

Adding to 82004651 its reverse (15640028), we get a palindrome (97644679).

The spelling of 82004651 in words is "eighty-two million, four thousand, six hundred fifty-one".