536870981 has 8 divisors (see below), whose sum is σ = 547576320. Its totient is φ = 526256352.

The previous prime is 536870951. The next prime is 536871001. The reversal of 536870981 is 189078635.

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 a de Polignac number, because none of the positive numbers 2^k-536870981 is a prime.

It is a super-2 number, since 2×536870981² = 576460900479804722, 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 (536870951) 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, 10661 + ... + 34458.

It is an arithmetic number, because the mean of its divisors is an integer number (68447040).

Almost surely, 2^536870981 is an apocalyptic number.

It is an amenable number.

536870981 is a deficient number, since it is larger than the sum of its proper divisors (10705339).

536870981 is a wasteful number, since it uses less digits than its factorization.

536870981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45355.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 536870981 is about 23170.4764948846. The cubic root of 536870981 is about 812.7493734266.

The spelling of 536870981 in words is "five hundred thirty-six million, eight hundred seventy thousand, nine hundred eighty-one".