82768992 has 24 divisors (see below), whose sum is σ = 217268856. Its totient is φ = 27589632.

The previous prime is 82768991. The next prime is 82769047. The reversal of 82768992 is 29986728.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82768991) 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, 430993 + ... + 431184.

It is an arithmetic number, because the mean of its divisors is an integer number (9052869).

Almost surely, 2^82768992 is an apocalyptic number.

It is an amenable number.

82768992 is an abundant number, since it is smaller than the sum of its proper divisors (134499864).

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

82768992 is a wasteful number, since it uses less digits than its factorization.

82768992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862190 (or 862182 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 82768992 is about 9097.7465341699. The cubic root of 82768992 is about 435.8020030766.

The spelling of 82768992 in words is "eighty-two million, seven hundred sixty-eight thousand, nine hundred ninety-two".