82626563 has 4 divisors (see below), whose sum is σ = 85291968. Its totient is φ = 79961160.

The previous prime is 82626559. The next prime is 82626569. The reversal of 82626563 is 36562628.

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 82626563 - 2² = 82626559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82626569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332656 + ... + 1332717.

It is an arithmetic number, because the mean of its divisors is an integer number (21322992).

Almost surely, 2^82626563 is an apocalyptic number.

82626563 is a deficient number, since it is larger than the sum of its proper divisors (2665405).

82626563 is a wasteful number, since it uses less digits than its factorization.

82626563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665404.

The product of its digits is 103680, while the sum is 38.

The square root of 82626563 is about 9089.9154561525. The cubic root of 82626563 is about 435.5518833158.

The spelling of 82626563 in words is "eighty-two million, six hundred twenty-six thousand, five hundred sixty-three".