227987497 has 2 divisors, whose sum is σ = 227987498. Its totient is φ = 227987496.

The previous prime is 227987491. The next prime is 227987549. The reversal of 227987497 is 794789722.

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., 148937616 + 79049881 = 12204^2 + 8891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227987497 is a prime.

It is not a weakly prime, because it can be changed into another prime (227987491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113993748 + 113993749.

It is an arithmetic number, because the mean of its divisors is an integer number (113993749).

Almost surely, 2^227987497 is an apocalyptic number.

It is an amenable number.

227987497 is a deficient number, since it is larger than the sum of its proper divisors (1).

227987497 is an equidigital number, since it uses as much as digits as its factorization.

227987497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3556224, while the sum is 55.

The square root of 227987497 is about 15099.2548491639. The cubic root of 227987497 is about 610.9003072275.

It can be divided in two parts, 227987 and 497, that added together give a square (228484 = 478²).

The spelling of 227987497 in words is "two hundred twenty-seven million, nine hundred eighty-seven thousand, four hundred ninety-seven".