5966640 has 60 divisors (see below), whose sum is σ = 20040384. Its totient is φ = 1590912.

The previous prime is 5966629. The next prime is 5966651. The reversal of 5966640 is 466695.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5966629) and next prime (5966651).

It is a tau number, because it is divible by the number of its divisors (60).

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5966595 and 5966604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3424 + ... + 4863.

Almost surely, 2^5966640 is an apocalyptic number.

It is an amenable number.

5966640 is an abundant number, since it is smaller than the sum of its proper divisors (14073744).

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

5966640 is a wasteful number, since it uses less digits than its factorization.

5966640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8306 (or 8297 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 5966640 is about 2442.6706695746. The cubic root of 5966640 is about 181.3746601789.

Subtracting from 5966640 its reverse (466695), we obtain a palindrome (5499945).

The spelling of 5966640 in words is "five million, nine hundred sixty-six thousand, six hundred forty".