80072776 has 16 divisors (see below), whose sum is σ = 171584640. Its totient is φ = 34316880.

The previous prime is 80072767. The next prime is 80072779. The reversal of 80072776 is 67727008.

It is not an unprimeable number, because it can be changed into a prime (80072779) 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, 714880 + ... + 714991.

It is an arithmetic number, because the mean of its divisors is an integer number (10724040).

Almost surely, 2^80072776 is an apocalyptic number.

It is an amenable number.

80072776 is an abundant number, since it is smaller than the sum of its proper divisors (91511864).

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

80072776 is a wasteful number, since it uses less digits than its factorization.

80072776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429884 (or 1429880 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 80072776 is about 8948.3392872644. The cubic root of 80072776 is about 431.0175576886.

The spelling of 80072776 in words is "eighty million, seventy-two thousand, seven hundred seventy-six".