80506782 has 24 divisors (see below), whose sum is σ = 175202040. Its totient is φ = 26717040.

The previous prime is 80506729. The next prime is 80506787. The reversal of 80506782 is 28760508.

80506782 is a `hidden beast` number, since 80 + 506 + 78 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80506787) 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, 5644 + ... + 13887.

It is an arithmetic number, because the mean of its divisors is an integer number (7300085).

Almost surely, 2^80506782 is an apocalyptic number.

80506782 is an abundant number, since it is smaller than the sum of its proper divisors (94695258).

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

80506782 is a wasteful number, since it uses less digits than its factorization.

80506782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19768 (or 19765 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 80506782 is about 8972.5571605869. The cubic root of 80506782 is about 431.7948807600.

The spelling of 80506782 in words is "eighty million, five hundred six thousand, seven hundred eighty-two".