536981 has 8 divisors (see below), whose sum is σ = 576384. Its totient is φ = 498960.

The previous prime is 536971. The next prime is 536989. The reversal of 536981 is 189635.

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 536981 - 2⁶ = 536917 is a prime.

It is a super-2 number, since 2×536981² = 576697188722, 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 (536989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536 + ... + 1166.

It is an arithmetic number, because the mean of its divisors is an integer number (72048).

2⁵³⁶⁹⁸¹ is an apocalyptic number.

It is an amenable number.

536981 is a deficient number, since it is larger than the sum of its proper divisors (39403).

536981 is a wasteful number, since it uses less digits than its factorization.

536981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its digits is 6480, while the sum is 32.

The square root of 536981 is about 732.7898743842. The cubic root of 536981 is about 81.2804887550.

The spelling of 536981 in words is "five hundred thirty-six thousand, nine hundred eighty-one".