264022789 has 2 divisors, whose sum is σ = 264022790. Its totient is φ = 264022788.

The previous prime is 264022783. The next prime is 264022799. The reversal of 264022789 is 987220462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226261764 + 37761025 = 15042^2 + 6145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264022789 is a prime.

It is a super-2 number, since 2×264022789² = 139416066222677042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264022783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132011394 + 132011395.

It is an arithmetic number, because the mean of its divisors is an integer number (132011395).

Almost surely, 2^264022789 is an apocalyptic number.

It is an amenable number.

264022789 is a deficient number, since it is larger than the sum of its proper divisors (1).

264022789 is an equidigital number, since it uses as much as digits as its factorization.

264022789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 264022789 is about 16248.7780771355. The cubic root of 264022789 is about 641.5253241801.

The spelling of 264022789 in words is "two hundred sixty-four million, twenty-two thousand, seven hundred eighty-nine".