10838721 has 32 divisors (see below), whose sum is σ = 16128000. Its totient is φ = 6447168.

The previous prime is 10838701. The next prime is 10838749. The reversal of 10838721 is 12783801.

It is a happy number.

It is not a de Polignac number, because 10838721 - 2⁵ = 10838689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10838701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130546 + ... + 130628.

It is an arithmetic number, because the mean of its divisors is an integer number (504000).

Almost surely, 2^10838721 is an apocalyptic number.

It is an amenable number.

10838721 is a deficient number, since it is larger than the sum of its proper divisors (5289279).

10838721 is a wasteful number, since it uses less digits than its factorization.

10838721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 10838721 is about 3292.2212866088. The cubic root of 10838721 is about 221.3057403688.

The spelling of 10838721 in words is "ten million, eight hundred thirty-eight thousand, seven hundred twenty-one".