10997939 has 4 divisors (see below), whose sum is σ = 11059560. Its totient is φ = 10936320.

The previous prime is 10997927. The next prime is 10997947. The reversal of 10997939 is 93979901.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10997939 - 2⁸ = 10997683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10997893 and 10997902.

It is not an unprimeable number, because it can be changed into a prime (10997969) 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 3 ways as a sum of consecutive naturals, for example, 30542 + ... + 30899.

It is an arithmetic number, because the mean of its divisors is an integer number (2764890).

Almost surely, 2^10997939 is an apocalyptic number.

10997939 is a deficient number, since it is larger than the sum of its proper divisors (61621).

10997939 is an equidigital number, since it uses as much as digits as its factorization.

10997939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61620.

The product of its (nonzero) digits is 137781, while the sum is 47.

The square root of 10997939 is about 3316.3140683596. The cubic root of 10997939 is about 222.3841184228.

The spelling of 10997939 in words is "ten million, nine hundred ninety-seven thousand, nine hundred thirty-nine".