83263540 has 12 divisors (see below), whose sum is σ = 174853476. Its totient is φ = 33305408.

The previous prime is 83263511. The next prime is 83263541. The reversal of 83263540 is 4536238.

It can be written as a sum of positive squares in 2 ways, for example, as 23386896 + 59876644 = 4836^2 + 7738^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83263541) 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, 2081569 + ... + 2081608.

It is an arithmetic number, because the mean of its divisors is an integer number (14571123).

Almost surely, 2^83263540 is an apocalyptic number.

It is an amenable number.

83263540 is an abundant number, since it is smaller than the sum of its proper divisors (91589936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83263540 is a wasteful number, since it uses less digits than its factorization.

83263540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4163186 (or 4163184 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 83263540 is about 9124.8857527095. The cubic root of 83263540 is about 436.6682581247.

Adding to 83263540 its reverse (4536238), we get a palindrome (87799778).

The spelling of 83263540 in words is "eighty-three million, two hundred sixty-three thousand, five hundred forty".