10997945 has 8 divisors (see below), whose sum is σ = 15082944. Its totient is φ = 7541424.

The previous prime is 10997927. The next prime is 10997947. The reversal of 10997945 is 54979901.

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

It is a cyclic number.

It is not a de Polignac number, because 10997945 - 2⁸ = 10997689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10997896 and 10997905.

It is not an unprimeable number, because it can be changed into a prime (10997947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157079 + ... + 157148.

It is an arithmetic number, because the mean of its divisors is an integer number (1885368).

Almost surely, 2^10997945 is an apocalyptic number.

It is an amenable number.

10997945 is a deficient number, since it is larger than the sum of its proper divisors (4084999).

10997945 is an equidigital number, since it uses as much as digits as its factorization.

10997945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314239.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 10997945 is about 3316.3149729783. The cubic root of 10997945 is about 222.3841588638.

The spelling of 10997945 in words is "ten million, nine hundred ninety-seven thousand, nine hundred forty-five".