80727996 has 48 divisors (see below), whose sum is σ = 195904800. Its totient is φ = 25842432.

The previous prime is 80727947. The next prime is 80728009. The reversal of 80727996 is 69972708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79186 + ... + 80198.

It is an arithmetic number, because the mean of its divisors is an integer number (4081350).

Almost surely, 2^80727996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80727996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97952400).

80727996 is an abundant number, since it is smaller than the sum of its proper divisors (115176804).

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

80727996 is a wasteful number, since it uses less digits than its factorization.

80727996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278 (or 1276 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 80727996 is about 8984.8759590770. The cubic root of 80727996 is about 432.1900098642.

The spelling of 80727996 in words is "eighty million, seven hundred twenty-seven thousand, nine hundred ninety-six".