10035981 has 20 divisors (see below), whose sum is σ = 15646752. Its totient is φ = 6398568.

The previous prime is 10035973. The next prime is 10035989. The reversal of 10035981 is 18953001.

It is an interprime number because it is at equal distance from previous prime (10035973) and next prime (10035989).

It is not a de Polignac number, because 10035981 - 2³ = 10035973 is a prime.

It is a super-2 number, since 2×10035981² = 201441829264722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10035989) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 831 + ... + 4556.

Almost surely, 2^10035981 is an apocalyptic number.

It is an amenable number.

10035981 is a deficient number, since it is larger than the sum of its proper divisors (5610771).

10035981 is an equidigital number, since it uses as much as digits as its factorization.

10035981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5422 (or 5413 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 10035981 is about 3167.9616474951. The cubic root of 10035981 is about 215.7015554253.

Adding to 10035981 its reverse (18953001), we get a palindrome (28988982).

The spelling of 10035981 in words is "ten million, thirty-five thousand, nine hundred eighty-one".