10368991 has 4 divisors (see below), whose sum is σ = 10649272. Its totient is φ = 10088712.

The previous prime is 10368971. The next prime is 10369001. The reversal of 10368991 is 19986301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19986301 = 67 ⋅298303.

It is a cyclic number.

It is not a de Polignac number, because 10368991 - 2¹³ = 10360799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 280243 = 10368991 / (1 + 0 + 3 + 6 + 8 + 9 + 9 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10368991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10368931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140085 + ... + 140158.

It is an arithmetic number, because the mean of its divisors is an integer number (2662318).

Almost surely, 2^10368991 is an apocalyptic number.

10368991 is a deficient number, since it is larger than the sum of its proper divisors (280281).

10368991 is an equidigital number, since it uses as much as digits as its factorization.

10368991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280280.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 10368991 is about 3220.0917688786. The cubic root of 10368991 is about 218.0614183202.

The spelling of 10368991 in words is "ten million, three hundred sixty-eight thousand, nine hundred ninety-one".