80709036 has 48 divisors (see below), whose sum is σ = 202003200. Its totient is φ = 25002432.

The previous prime is 80709023. The next prime is 80709061. The reversal of 80709036 is 63090708.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80708988 and 80709006.

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, 8745 + ... + 15423.

It is an arithmetic number, because the mean of its divisors is an integer number (4208400).

Almost surely, 2^80709036 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 80709036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101001600).

80709036 is an abundant number, since it is smaller than the sum of its proper divisors (121294164).

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

80709036 is a wasteful number, since it uses less digits than its factorization.

80709036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6758 (or 6756 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 80709036 is about 8983.8207907326. The cubic root of 80709036 is about 432.1561721020.

The spelling of 80709036 in words is "eighty million, seven hundred nine thousand, thirty-six".