82226709 has 12 divisors (see below), whose sum is σ = 119530476. Its totient is φ = 54467712.

The previous prime is 82226659. The next prime is 82226741. The reversal of 82226709 is 90762228.

It can be written as a sum of positive squares in 2 ways, for example, as 32524209 + 49702500 = 5703^2 + 7050^2 .

It is not a de Polignac number, because 82226709 - 2⁷ = 82226581 is a prime.

It is a super-2 number, since 2×82226709² = 13522463345941362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82226789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27684 + ... + 30509.

It is an arithmetic number, because the mean of its divisors is an integer number (9960873).

Almost surely, 2^82226709 is an apocalyptic number.

It is an amenable number.

82226709 is a deficient number, since it is larger than the sum of its proper divisors (37303767).

82226709 is a wasteful number, since it uses less digits than its factorization.

82226709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58356 (or 58353 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 82226709 is about 9067.8944082957. The cubic root of 82226709 is about 434.8481594504.

The spelling of 82226709 in words is "eighty-two million, two hundred twenty-six thousand, seven hundred nine".