10998081 has 12 divisors (see below), whose sum is σ = 16078608. Its totient is φ = 7243224.

The previous prime is 10998079. The next prime is 10998101. The reversal of 10998081 is 18089901.

It is not a de Polignac number, because 10998081 - 2¹ = 10998079 is a prime.

It is a super-2 number, since 2×10998081² = 241915571365122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10998011) 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 11 ways as a sum of consecutive naturals, for example, 6615 + ... + 8108.

It is an arithmetic number, because the mean of its divisors is an integer number (1339884).

Almost surely, 2^10998081 is an apocalyptic number.

It is an amenable number.

10998081 is a deficient number, since it is larger than the sum of its proper divisors (5080527).

10998081 is a wasteful number, since it uses less digits than its factorization.

10998081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14812 (or 14809 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 10998081 is about 3316.3354776017. The cubic root of 10998081 is about 222.3850755236.

It can be divided in two parts, 1099 and 8081, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 10998081 in words is "ten million, nine hundred ninety-eight thousand, eighty-one".