80586780 has 24 divisors (see below), whose sum is σ = 225643152. Its totient is φ = 21489792.

The previous prime is 80586769. The next prime is 80586787. The reversal of 80586780 is 8768508.

It is a happy number.

It is a super-2 number, since 2×80586780² = 12988458221536800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80586787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671497 + ... + 671616.

It is an arithmetic number, because the mean of its divisors is an integer number (9401798).

Almost surely, 2^80586780 is an apocalyptic number.

It is an amenable number.

80586780 is an abundant number, since it is smaller than the sum of its proper divisors (145056372).

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

80586780 is a wasteful number, since it uses less digits than its factorization.

80586780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343125 (or 1343123 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 80586780 is about 8977.0139801607. The cubic root of 80586780 is about 431.9378554297.

The spelling of 80586780 in words is "eighty million, five hundred eighty-six thousand, seven hundred eighty".