226791497 has 4 divisors (see below), whose sum is σ = 231616896. Its totient is φ = 221966100.

The previous prime is 226791469. The next prime is 226791527. The reversal of 226791497 is 794197622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 226791497 - 2¹⁴ = 226775113 is a prime.

It is a super-2 number, since 2×226791497² = 102868766223002018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 4825351 = 226791497 / (2 + 2 + 6 + 7 + 9 + 1 + 4 + 9 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226791197) 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, 2412629 + ... + 2412722.

It is an arithmetic number, because the mean of its divisors is an integer number (57904224).

Almost surely, 2^226791497 is an apocalyptic number.

It is an amenable number.

226791497 is a deficient number, since it is larger than the sum of its proper divisors (4825399).

226791497 is an equidigital number, since it uses as much as digits as its factorization.

226791497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4825398.

The product of its digits is 381024, while the sum is 47.

The square root of 226791497 is about 15059.5981686099. The cubic root of 226791497 is about 609.8301928136.

The spelling of 226791497 in words is "two hundred twenty-six million, seven hundred ninety-one thousand, four hundred ninety-seven".