47226997 has 2 divisors, whose sum is σ = 47226998. Its totient is φ = 47226996.

The previous prime is 47226979. The next prime is 47227001. The reversal of 47226997 is 79962274.

It is a happy number.

Together with previous prime (47226979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46799281 + 427716 = 6841^2 + 654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47226997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47226937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23613498 + 23613499.

It is an arithmetic number, because the mean of its divisors is an integer number (23613499).

Almost surely, 2^47226997 is an apocalyptic number.

It is an amenable number.

47226997 is a deficient number, since it is larger than the sum of its proper divisors (1).

47226997 is an equidigital number, since it uses as much as digits as its factorization.

47226997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 46.

The square root of 47226997 is about 6872.1901166950. The cubic root of 47226997 is about 361.4626629049.

The spelling of 47226997 in words is "forty-seven million, two hundred twenty-six thousand, nine hundred ninety-seven".