10998865 has 8 divisors (see below), whose sum is σ = 13520808. Its totient is φ = 8584320.

The previous prime is 10998857. The next prime is 10998907. The reversal of 10998865 is 56889901.

10998865 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 559504 + 10439361 = 748^2 + 3231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10998865 - 2³ = 10998857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26622 + ... + 27031.

It is an arithmetic number, because the mean of its divisors is an integer number (1690101).

Almost surely, 2^10998865 is an apocalyptic number.

It is an amenable number.

10998865 is a deficient number, since it is larger than the sum of its proper divisors (2521943).

10998865 is an equidigital number, since it uses as much as digits as its factorization.

10998865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53699.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 10998865 is about 3316.4536782533. The cubic root of 10998865 is about 222.3903596502.

The spelling of 10998865 in words is "ten million, nine hundred ninety-eight thousand, eight hundred sixty-five".