5810981 has 8 divisors (see below), whose sum is σ = 6544128. Its totient is φ = 5112000.

The previous prime is 5810953. The next prime is 5810983. The reversal of 5810981 is 1890185.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5810981 - 2²² = 1616677 is a prime.

It is a super-2 number, since 2×5810981² = 67535000364722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5810983) 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 7 ways as a sum of consecutive naturals, for example, 8180 + ... + 8861.

It is an arithmetic number, because the mean of its divisors is an integer number (818016).

Almost surely, 2^5810981 is an apocalyptic number.

It is an amenable number.

5810981 is a deficient number, since it is larger than the sum of its proper divisors (733147).

5810981 is a wasteful number, since it uses less digits than its factorization.

5810981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17083.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 5810981 is about 2410.5976437390. The cubic root of 5810981 is about 179.7834948346.

The spelling of 5810981 in words is "five million, eight hundred ten thousand, nine hundred eighty-one".