80894736 has 120 divisors (see below), whose sum is σ = 247345280. Its totient is φ = 24530688.

The previous prime is 80894719. The next prime is 80894741. The reversal of 80894736 is 63749808.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80894691 and 80894700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147615 + ... + 148161.

Almost surely, 2^80894736 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 80894736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123672640).

80894736 is an abundant number, since it is smaller than the sum of its proper divisors (166450544).

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

80894736 is a wasteful number, since it uses less digits than its factorization.

80894736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 80894736 is about 8994.1500988142. The cubic root of 80894736 is about 432.4873614982.

The spelling of 80894736 in words is "eighty million, eight hundred ninety-four thousand, seven hundred thirty-six".