82804011 has 4 divisors (see below), whose sum is σ = 110405352. Its totient is φ = 55202672.

The previous prime is 82803997. The next prime is 82804031. The reversal of 82804011 is 11040828.

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 82804011 - 2⁶ = 82803947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82804031) 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, 13800666 + ... + 13800671.

It is an arithmetic number, because the mean of its divisors is an integer number (27601338).

Almost surely, 2^82804011 is an apocalyptic number.

82804011 is a deficient number, since it is larger than the sum of its proper divisors (27601341).

82804011 is a wasteful number, since it uses less digits than its factorization.

82804011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27601340.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 82804011 is about 9099.6709281160. The cubic root of 82804011 is about 435.8634560360.

Adding to 82804011 its reverse (11040828), we get a palindrome (93844839).

The spelling of 82804011 in words is "eighty-two million, eight hundred four thousand, eleven".