10938491 has 4 divisors (see below), whose sum is σ = 11018472. Its totient is φ = 10858512.

The previous prime is 10938457. The next prime is 10938517. The reversal of 10938491 is 19483901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10938491 - 2⁶ = 10938427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10938391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39785 + ... + 40058.

It is an arithmetic number, because the mean of its divisors is an integer number (2754618).

Almost surely, 2^10938491 is an apocalyptic number.

10938491 is a deficient number, since it is larger than the sum of its proper divisors (79981).

10938491 is an equidigital number, since it uses as much as digits as its factorization.

10938491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79980.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 10938491 is about 3307.3389605542. The cubic root of 10938491 is about 221.9827043312.

The spelling of 10938491 in words is "ten million, nine hundred thirty-eight thousand, four hundred ninety-one".