10726391 has 4 divisors (see below), whose sum is σ = 11551512. Its totient is φ = 9901272.

The previous prime is 10726381. The next prime is 10726399. The reversal of 10726391 is 19362701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19362701 = 41 ⋅472261.

It is a cyclic number.

It is not a de Polignac number, because 10726391 - 2⁶ = 10726327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10726399) 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, 412541 + ... + 412566.

It is an arithmetic number, because the mean of its divisors is an integer number (2887878).

Almost surely, 2^10726391 is an apocalyptic number.

10726391 is a deficient number, since it is larger than the sum of its proper divisors (825121).

10726391 is an equidigital number, since it uses as much as digits as its factorization.

10726391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825120.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 10726391 is about 3275.1169444769. The cubic root of 10726391 is about 220.5385634326.

The spelling of 10726391 in words is "ten million, seven hundred twenty-six thousand, three hundred ninety-one".