5660820 has 96 divisors (see below), whose sum is σ = 19232640. Its totient is φ = 1370880.

The previous prime is 5660807. The next prime is 5660833. The reversal of 5660820 is 280665.

5660820 is a `hidden beast` number, since 56 + 608 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (5660807) and next prime (5660833).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5464 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (200340).

Almost surely, 2^5660820 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 5660820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9616320).

5660820 is an abundant number, since it is smaller than the sum of its proper divisors (13571820).

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

5660820 is a wasteful number, since it uses less digits than its factorization.

5660820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 974 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 5660820 is about 2379.2477802869. The cubic root of 5660820 is about 178.2213716730.

The spelling of 5660820 in words is "five million, six hundred sixty thousand, eight hundred twenty".