80869560 has 64 divisors (see below), whose sum is σ = 244270080. Its totient is φ = 21417600.

The previous prime is 80869559. The next prime is 80869571. The reversal of 80869560 is 6596808.

It is a congruent number.

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, 15889 + ... + 20351.

It is an arithmetic number, because the mean of its divisors is an integer number (3816720).

Almost surely, 2^80869560 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 80869560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122135040).

80869560 is an abundant number, since it is smaller than the sum of its proper divisors (163400520).

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

80869560 is a wasteful number, since it uses less digits than its factorization.

80869560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628 (or 4624 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 80869560 is about 8992.7504135276. The cubic root of 80869560 is about 432.4424907106.

The spelling of 80869560 in words is "eighty million, eight hundred sixty-nine thousand, five hundred sixty".