264229387 has 2 divisors, whose sum is σ = 264229388. Its totient is φ = 264229386.

The previous prime is 264229349. The next prime is 264229391. The reversal of 264229387 is 783922462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264229387 is a prime.

It is not a weakly prime, because it can be changed into another prime (264229397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132114693 + 132114694.

It is an arithmetic number, because the mean of its divisors is an integer number (132114694).

Almost surely, 2^264229387 is an apocalyptic number.

264229387 is a deficient number, since it is larger than the sum of its proper divisors (1).

264229387 is an equidigital number, since it uses as much as digits as its factorization.

264229387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 264229387 is about 16255.1341735465. The cubic root of 264229387 is about 641.6926118780.

The spelling of 264229387 in words is "two hundred sixty-four million, two hundred twenty-nine thousand, three hundred eighty-seven".