10997808 has 80 divisors (see below), whose sum is σ = 30950400. Its totient is φ = 3352320.

The previous prime is 10997807. The next prime is 10997813. The reversal of 10997808 is 80879901.

It is a self number, because there is not a number n which added to its sum of digits gives 10997808.

It is not an unprimeable number, because it can be changed into a prime (10997807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28078 + ... + 28466.

It is an arithmetic number, because the mean of its divisors is an integer number (386880).

Almost surely, 2^10997808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10997808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15475200).

10997808 is an abundant number, since it is smaller than the sum of its proper divisors (19952592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10997808 is a wasteful number, since it uses less digits than its factorization.

10997808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 10997808 is about 3316.2943174574. The cubic root of 10997808 is about 222.3832354563.

The spelling of 10997808 in words is "ten million, nine hundred ninety-seven thousand, eight hundred eight".