10993905 has 24 divisors (see below), whose sum is σ = 20523048. Its totient is φ = 5412096.

The previous prime is 10993901. The next prime is 10993907. The reversal of 10993905 is 50939901.

10993905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 651249 + 10342656 = 807^2 + 3216^2 .

It is not a de Polignac number, because 10993905 - 2² = 10993901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10993905.

It is not an unprimeable number, because it can be changed into a prime (10993901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8812 + ... + 9981.

It is an arithmetic number, because the mean of its divisors is an integer number (855127).

Almost surely, 2^10993905 is an apocalyptic number.

10993905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10993905 is a deficient number, since it is larger than the sum of its proper divisors (9529143).

10993905 is a wasteful number, since it uses less digits than its factorization.

10993905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18817 (or 18814 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 36.

The square root of 10993905 is about 3315.7058072151. The cubic root of 10993905 is about 222.3569252296.

The spelling of 10993905 in words is "ten million, nine hundred ninety-three thousand, nine hundred five".