5209780 has 12 divisors (see below), whose sum is σ = 10940580. Its totient is φ = 2083904.

The previous prime is 5209777. The next prime is 5209783. The reversal of 5209780 is 879025.

It is an interprime number because it is at equal distance from previous prime (5209777) and next prime (5209783).

It can be written as a sum of positive squares in 2 ways, for example, as 933156 + 4276624 = 966^2 + 2068^2 .

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5209783) 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, 130225 + ... + 130264.

It is an arithmetic number, because the mean of its divisors is an integer number (911715).

Almost surely, 2^5209780 is an apocalyptic number.

It is an amenable number.

5209780 is an abundant number, since it is smaller than the sum of its proper divisors (5730800).

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

5209780 is a wasteful number, since it uses less digits than its factorization.

5209780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260498 (or 260496 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 5209780 is about 2282.4942497189. The cubic root of 5209780 is about 173.3563661043.

The spelling of 5209780 in words is "five million, two hundred nine thousand, seven hundred eighty".