82783260 has 72 divisors (see below), whose sum is σ = 286986336. Its totient is φ = 18921600.

The previous prime is 82783243. The next prime is 82783273. The reversal of 82783260 is 6238728.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31591 + ... + 34110.

Almost surely, 2^82783260 is an apocalyptic number.

It is an amenable number.

82783260 is an abundant number, since it is smaller than the sum of its proper divisors (204203076).

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

82783260 is a wasteful number, since it uses less digits than its factorization.

82783260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65723 (or 65718 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 82783260 is about 9098.5306506051. The cubic root of 82783260 is about 435.8270433143.

The spelling of 82783260 in words is "eighty-two million, seven hundred eighty-three thousand, two hundred sixty".