5277780 has 72 divisors (see below), whose sum is σ = 16216200. Its totient is φ = 1389312.

The previous prime is 5277773. The next prime is 5277799. The reversal of 5277780 is 877725.

It can be written as a sum of positive squares in 4 ways, for example, as 133956 + 5143824 = 366^2 + 2268^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19486 + ... + 19754.

It is an arithmetic number, because the mean of its divisors is an integer number (225225).

Almost surely, 2^5277780 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 5277780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8108100).

5277780 is an abundant number, since it is smaller than the sum of its proper divisors (10938420).

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

5277780 is a wasteful number, since it uses less digits than its factorization.

5277780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 36.

The square root of 5277780 is about 2297.3419423325. The cubic root of 5277780 is about 174.1073455732.

The spelling of 5277780 in words is "five million, two hundred seventy-seven thousand, seven hundred eighty".