10888921 has 2 divisors, whose sum is σ = 10888922. Its totient is φ = 10888920.

The previous prime is 10888879. The next prime is 10888937. The reversal of 10888921 is 12988801.

10888921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10653696 + 235225 = 3264^2 + 485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10888921 is a prime.

It is not a weakly prime, because it can be changed into another prime (10888961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5444460 + 5444461.

It is an arithmetic number, because the mean of its divisors is an integer number (5444461).

Almost surely, 2^10888921 is an apocalyptic number.

It is an amenable number.

10888921 is a deficient number, since it is larger than the sum of its proper divisors (1).

10888921 is an equidigital number, since it uses as much as digits as its factorization.

10888921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 10888921 is about 3299.8365111017. The cubic root of 10888921 is about 221.6468765820.

The spelling of 10888921 in words is "ten million, eight hundred eighty-eight thousand, nine hundred twenty-one".