10491227 has 4 divisors (see below), whose sum is σ = 11108376. Its totient is φ = 9874080.

The previous prime is 10491181. The next prime is 10491233. The reversal of 10491227 is 72219401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72219401 = 47 ⋅1536583.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10491227 is a prime.

It is a super-2 number, since 2×10491227² = 220131687931058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10491196 and 10491205.

It is not an unprimeable number, because it can be changed into a prime (10491277) 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, 308549 + ... + 308582.

It is an arithmetic number, because the mean of its divisors is an integer number (2777094).

Almost surely, 2^10491227 is an apocalyptic number.

10491227 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

10491227 is a deficient number, since it is larger than the sum of its proper divisors (617149).

10491227 is an equidigital number, since it uses as much as digits as its factorization.

10491227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617148.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 10491227 is about 3239.0163630337. The cubic root of 10491227 is about 218.9149534593.

The spelling of 10491227 in words is "ten million, four hundred ninety-one thousand, two hundred twenty-seven".