10978913 has 4 divisors (see below), whose sum is σ = 11977008. Its totient is φ = 9980820.

The previous prime is 10978901. The next prime is 10978921. The reversal of 10978913 is 31987901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10978913 - 2¹⁴ = 10962529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10978313) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 499031 + ... + 499052.

It is an arithmetic number, because the mean of its divisors is an integer number (2994252).

Almost surely, 2^10978913 is an apocalyptic number.

It is an amenable number.

10978913 is a deficient number, since it is larger than the sum of its proper divisors (998095).

10978913 is an equidigital number, since it uses as much as digits as its factorization.

10978913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998094.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 10978913 is about 3313.4442805033. Note that the first 3 decimals coincide. The cubic root of 10978913 is about 222.2558058225.

The spelling of 10978913 in words is "ten million, nine hundred seventy-eight thousand, nine hundred thirteen".