82626646 has 4 divisors (see below), whose sum is σ = 123939972. Its totient is φ = 41313322.

The previous prime is 82626641. The next prime is 82626673. The reversal of 82626646 is 64662628.

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

It is a junction number, because it is equal to n+sod(n) for n = 82626599 and 82626608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82626641) 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 as a sum of consecutive naturals, namely, 20656660 + ... + 20656663.

It is an arithmetic number, because the mean of its divisors is an integer number (30984993).

Almost surely, 2^82626646 is an apocalyptic number.

82626646 is a deficient number, since it is larger than the sum of its proper divisors (41313326).

82626646 is a wasteful number, since it uses less digits than its factorization.

82626646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41313325.

The product of its digits is 165888, while the sum is 40.

The square root of 82626646 is about 9089.9200216504. The cubic root of 82626646 is about 435.5520291559.

It can be divided in two parts, 826 and 26646, that added together give a palindrome (27472).

The spelling of 82626646 in words is "eighty-two million, six hundred twenty-six thousand, six hundred forty-six".