5645970 has 64 divisors (see below), whose sum is σ = 16433280. Its totient is φ = 1368000.

The previous prime is 5645957. The next prime is 5646019. The reversal of 5645970 is 795465.

5645970 is a `hidden beast` number, since 5 + 64 + 597 + 0 = 666.

It is a Curzon 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, 2020 + ... + 3920.

It is an arithmetic number, because the mean of its divisors is an integer number (256770).

Almost surely, 2^5645970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5645970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8216640).

5645970 is an abundant number, since it is smaller than the sum of its proper divisors (10787310).

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

5645970 is a wasteful number, since it uses less digits than its factorization.

5645970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928 (or 1922 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 5645970 is about 2376.1249967121. The cubic root of 5645970 is about 178.0653927978.

The spelling of 5645970 in words is "five million, six hundred forty-five thousand, nine hundred seventy".