80770780 has 12 divisors (see below), whose sum is σ = 169618680. Its totient is φ = 32308304.

The previous prime is 80770763. The next prime is 80770783. The reversal of 80770780 is 8707708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80770783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2019250 + ... + 2019289.

It is an arithmetic number, because the mean of its divisors is an integer number (14134890).

Almost surely, 2^80770780 is an apocalyptic number.

It is an amenable number.

80770780 is an abundant number, since it is smaller than the sum of its proper divisors (88847900).

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

80770780 is a wasteful number, since it uses less digits than its factorization.

80770780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038548 (or 4038546 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 80770780 is about 8987.2565335591. The cubic root of 80770780 is about 432.2663466688.

The spelling of 80770780 in words is "eighty million, seven hundred seventy thousand, seven hundred eighty".