10997842 has 4 divisors (see below), whose sum is σ = 16496766. Its totient is φ = 5498920.

The previous prime is 10997821. The next prime is 10997851. The reversal of 10997842 is 24879901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6456681 + 4541161 = 2541^2 + 2131^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 10997795 and 10997804.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2749459 + ... + 2749462.

Almost surely, 2^10997842 is an apocalyptic number.

10997842 is a deficient number, since it is larger than the sum of its proper divisors (5498924).

10997842 is an equidigital number, since it uses as much as digits as its factorization.

10997842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5498923.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 10997842 is about 3316.2994436570. The cubic root of 10997842 is about 222.3834646238.

The spelling of 10997842 in words is "ten million, nine hundred ninety-seven thousand, eight hundred forty-two".