80707816 has 32 divisors (see below), whose sum is σ = 173234880. Its totient is φ = 34531200.

The previous prime is 80707799. The next prime is 80707829. The reversal of 80707816 is 61870708.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60436 + ... + 61756.

It is an arithmetic number, because the mean of its divisors is an integer number (5413590).

Almost surely, 2^80707816 is an apocalyptic number.

It is an amenable number.

80707816 is an abundant number, since it is smaller than the sum of its proper divisors (92527064).

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

80707816 is a wasteful number, since it uses less digits than its factorization.

80707816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425 (or 2421 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 80707816 is about 8983.7528906354. The cubic root of 80707816 is about 432.1539945962.

The spelling of 80707816 in words is "eighty million, seven hundred seven thousand, eight hundred sixteen".