5720981 has 8 divisors (see below), whose sum is σ = 6677760. Its totient is φ = 4799088.

The previous prime is 5720971. The next prime is 5720987. The reversal of 5720981 is 1890275.

5720981 = T₁₂₇₅ + T₁₂₇₆ + ... + T₁₂₈₁.

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

It is not a de Polignac number, because 5720981 - 2¹⁰ = 5719957 is a prime.

It is a super-2 number, since 2×5720981² = 65459247204722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5720987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8366 + ... + 9023.

It is an arithmetic number, because the mean of its divisors is an integer number (834720).

Almost surely, 2^5720981 is an apocalyptic number.

It is an amenable number.

5720981 is a deficient number, since it is larger than the sum of its proper divisors (956779).

5720981 is a wasteful number, since it uses less digits than its factorization.

5720981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17443.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 5720981 is about 2391.8572281806. The cubic root of 5720981 is about 178.8505040616.

The spelling of 5720981 in words is "five million, seven hundred twenty thousand, nine hundred eighty-one".