5178780 has 36 divisors (see below), whose sum is σ = 15709512. Its totient is φ = 1380960.

The previous prime is 5178743. The next prime is 5178781. The reversal of 5178780 is 878715.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5178781) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14206 + ... + 14565.

Almost surely, 2^5178780 is an apocalyptic number.

It is an amenable number.

5178780 is an abundant number, since it is smaller than the sum of its proper divisors (10530732).

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

5178780 is a wasteful number, since it uses less digits than its factorization.

5178780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28786 (or 28781 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 5178780 is about 2275.6933009525. The cubic root of 5178780 is about 173.0118383203.

The spelling of 5178780 in words is "five million, one hundred seventy-eight thousand, seven hundred eighty".