82263731 has 16 divisors (see below), whose sum is σ = 95966208. Its totient is φ = 69686400.

The previous prime is 82263721. The next prime is 82263733. The reversal of 82263731 is 13736228.

It is a happy number.

It is not a de Polignac number, because 82263731 - 2¹⁰ = 82262707 is a prime.

It is a super-2 number, since 2×82263731² = 13534642876080722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82263733) 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 15 ways as a sum of consecutive naturals, for example, 17126 + ... + 21396.

It is an arithmetic number, because the mean of its divisors is an integer number (5997888).

Almost surely, 2^82263731 is an apocalyptic number.

82263731 is a deficient number, since it is larger than the sum of its proper divisors (13702477).

82263731 is a wasteful number, since it uses less digits than its factorization.

82263731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402.

The product of its digits is 12096, while the sum is 32.

The square root of 82263731 is about 9069.9355565517. The cubic root of 82263731 is about 434.9134121046.

Adding to 82263731 its reverse (13736228), we get a palindrome (95999959).

The spelling of 82263731 in words is "eighty-two million, two hundred sixty-three thousand, seven hundred thirty-one".