80707136 has 56 divisors (see below), whose sum is σ = 174101760. Its totient is φ = 36979200.

The previous prime is 80707127. The next prime is 80707141. The reversal of 80707136 is 63170708.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 36626 + ... + 38766.

It is an arithmetic number, because the mean of its divisors is an integer number (3108960).

Almost surely, 2^80707136 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 80707136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87050880).

80707136 is an abundant number, since it is smaller than the sum of its proper divisors (93394624).

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

80707136 is a wasteful number, since it uses less digits than its factorization.

80707136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203 (or 2193 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 80707136 is about 8983.7150444568. The cubic root of 80707136 is about 432.1527808949.

The spelling of 80707136 in words is "eighty million, seven hundred seven thousand, one hundred thirty-six".