226623437 has 2 divisors, whose sum is σ = 226623438. Its totient is φ = 226623436.

The previous prime is 226623433. The next prime is 226623457. The reversal of 226623437 is 734326622.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195832036 + 30791401 = 13994^2 + 5549^2 .

It is a cyclic number.

It is not a de Polignac number, because 226623437 - 2² = 226623433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 226623397 and 226623406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226623433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113311718 + 113311719.

It is an arithmetic number, because the mean of its divisors is an integer number (113311719).

Almost surely, 2^226623437 is an apocalyptic number.

It is an amenable number.

226623437 is a deficient number, since it is larger than the sum of its proper divisors (1).

226623437 is an equidigital number, since it uses as much as digits as its factorization.

226623437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 35.

The square root of 226623437 is about 15054.0173043610. The cubic root of 226623437 is about 609.6795208092.

The spelling of 226623437 in words is "two hundred twenty-six million, six hundred twenty-three thousand, four hundred thirty-seven".