5965981 has 16 divisors (see below), whose sum is σ = 7413760. Its totient is φ = 4685040.

The previous prime is 5965979. The next prime is 5966011. The reversal of 5965981 is 1895695.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5965981 - 2¹ = 5965979 is a prime.

It is a super-2 number, since 2×5965981² = 71185858584722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5965961) 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 15 ways as a sum of consecutive naturals, for example, 3400 + ... + 4846.

It is an arithmetic number, because the mean of its divisors is an integer number (463360).

Almost surely, 2^5965981 is an apocalyptic number.

It is an amenable number.

5965981 is a deficient number, since it is larger than the sum of its proper divisors (1447779).

5965981 is a wasteful number, since it uses less digits than its factorization.

5965981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504.

The product of its digits is 97200, while the sum is 43.

The square root of 5965981 is about 2442.5357725118. The cubic root of 5965981 is about 181.3679824786.

The spelling of 5965981 in words is "five million, nine hundred sixty-five thousand, nine hundred eighty-one".