82749804 has 12 divisors (see below), whose sum is σ = 193082904. Its totient is φ = 27583264.

The previous prime is 82749773. The next prime is 82749811. The reversal of 82749804 is 40894728.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3447897 + ... + 3447920.

It is an arithmetic number, because the mean of its divisors is an integer number (16090242).

Almost surely, 2^82749804 is an apocalyptic number.

It is an amenable number.

82749804 is an abundant number, since it is smaller than the sum of its proper divisors (110333100).

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

82749804 is a wasteful number, since it uses less digits than its factorization.

82749804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6895824 (or 6895822 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 82749804 is about 9096.6919261894. The cubic root of 82749804 is about 435.7683237364.

The spelling of 82749804 in words is "eighty-two million, seven hundred forty-nine thousand, eight hundred four".