10998749 has 4 divisors (see below), whose sum is σ = 11005500. Its totient is φ = 10992000.

The previous prime is 10998737. The next prime is 10998763. The reversal of 10998749 is 94789901.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 822649 + 10176100 = 907^2 + 3190^2 .

It is a cyclic number.

It is not a de Polignac number, because 10998749 - 2¹² = 10994653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10398749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749 + ... + 4749.

It is an arithmetic number, because the mean of its divisors is an integer number (2751375).

Almost surely, 2^10998749 is an apocalyptic number.

It is an amenable number.

10998749 is a deficient number, since it is larger than the sum of its proper divisors (6751).

10998749 is an equidigital number, since it uses as much as digits as its factorization.

10998749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6750.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 10998749 is about 3316.4361896470. The cubic root of 10998749 is about 222.3895778310.

The spelling of 10998749 in words is "ten million, nine hundred ninety-eight thousand, seven hundred forty-nine".