80078756 has 12 divisors (see below), whose sum is σ = 140537292. Its totient is φ = 39925248.

The previous prime is 80078743. The next prime is 80078777. The reversal of 80078756 is 65787008.

It can be written as a sum of positive squares in 2 ways, for example, as 43112356 + 36966400 = 6566^2 + 6080^2 .

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, 26945 + ... + 29768.

It is an arithmetic number, because the mean of its divisors is an integer number (11711441).

Almost surely, 2^80078756 is an apocalyptic number.

It is an amenable number.

80078756 is a deficient number, since it is larger than the sum of its proper divisors (60458536).

80078756 is a wasteful number, since it uses less digits than its factorization.

80078756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57070 (or 57068 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 80078756 is about 8948.6734212396. The cubic root of 80078756 is about 431.0282871815.

The spelling of 80078756 in words is "eighty million, seventy-eight thousand, seven hundred fifty-six".