10938421 has 8 divisors (see below), whose sum is σ = 12098744. Its totient is φ = 9823680.

The previous prime is 10938413. The next prime is 10938427. The reversal of 10938421 is 12483901.

It is a happy number.

10938421 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 343396 + 10595025 = 586^2 + 3255^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10938421 - 2³ = 10938413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10938421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10938427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10890 + ... + 11851.

It is an arithmetic number, because the mean of its divisors is an integer number (1512343).

Almost surely, 2^10938421 is an apocalyptic number.

It is an amenable number.

10938421 is a deficient number, since it is larger than the sum of its proper divisors (1160323).

10938421 is a wasteful number, since it uses less digits than its factorization.

10938421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22791.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 10938421 is about 3307.3283780115. The cubic root of 10938421 is about 221.9822308100.

The spelling of 10938421 in words is "ten million, nine hundred thirty-eight thousand, four hundred twenty-one".