82390011 has 8 divisors (see below), whose sum is σ = 119840064. Its totient is φ = 49933320.

The previous prime is 82389991. The next prime is 82390027. The reversal of 82390011 is 11009328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82390011 - 2¹⁵ = 82357243 is a prime.

It is a super-2 number, since 2×82390011² = 13576227825160242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82390111) 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 7 ways as a sum of consecutive naturals, for example, 1248301 + ... + 1248366.

It is an arithmetic number, because the mean of its divisors is an integer number (14980008).

Almost surely, 2^82390011 is an apocalyptic number.

82390011 is a deficient number, since it is larger than the sum of its proper divisors (37450053).

82390011 is a wasteful number, since it uses less digits than its factorization.

82390011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496681.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 82390011 is about 9076.8943477381. The cubic root of 82390011 is about 435.1358381427.

Adding to 82390011 its reverse (11009328), we get a palindrome (93399339).

It can be divided in two parts, 82 and 390011, that added together give a palindrome (390093).

The spelling of 82390011 in words is "eighty-two million, three hundred ninety thousand, eleven".