82263311 has 4 divisors (see below), whose sum is σ = 88591272. Its totient is φ = 75935352.

The previous prime is 82263299. The next prime is 82263317. The reversal of 82263311 is 11336228.

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 82263311 - 2¹⁸ = 82001167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82263317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3163961 + ... + 3163986.

It is an arithmetic number, because the mean of its divisors is an integer number (22147818).

Almost surely, 2^82263311 is an apocalyptic number.

82263311 is a deficient number, since it is larger than the sum of its proper divisors (6327961).

82263311 is a wasteful number, since it uses less digits than its factorization.

82263311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327960.

The product of its digits is 1728, while the sum is 26.

The square root of 82263311 is about 9069.9124031051. The cubic root of 82263311 is about 434.9126719487.

Adding to 82263311 its reverse (11336228), we get a palindrome (93599539).

The spelling of 82263311 in words is "eighty-two million, two hundred sixty-three thousand, three hundred eleven".