226897906 has 4 divisors (see below), whose sum is σ = 340346862. Its totient is φ = 113448952.

The previous prime is 226897903. The next prime is 226897907. The reversal of 226897906 is 609798622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 609798622 = 2 ⋅304899311.

It can be written as a sum of positive squares in only one way, i.e., 165353881 + 61544025 = 12859^2 + 7845^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 226897906.

It is not an unprimeable number, because it can be changed into a prime (226897903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56724475 + ... + 56724478.

Almost surely, 2^226897906 is an apocalyptic number.

226897906 is a deficient number, since it is larger than the sum of its proper divisors (113448956).

226897906 is a wasteful number, since it uses less digits than its factorization.

226897906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113448955.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 226897906 is about 15063.1306838917. The cubic root of 226897906 is about 609.9255539355.

The spelling of 226897906 in words is "two hundred twenty-six million, eight hundred ninety-seven thousand, nine hundred six".