264001393 has 2 divisors, whose sum is σ = 264001394. Its totient is φ = 264001392.

The previous prime is 264001289. The next prime is 264001411. The reversal of 264001393 is 393100462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240653169 + 23348224 = 15513^2 + 4832^2 .

It is a cyclic number.

It is not a de Polignac number, because 264001393 - 2⁹ = 264000881 is a prime.

It is not a weakly prime, because it can be changed into another prime (264001693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132000696 + 132000697.

It is an arithmetic number, because the mean of its divisors is an integer number (132000697).

Almost surely, 2^264001393 is an apocalyptic number.

It is an amenable number.

264001393 is a deficient number, since it is larger than the sum of its proper divisors (1).

264001393 is an equidigital number, since it uses as much as digits as its factorization.

264001393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 264001393 is about 16248.1196758271. The cubic root of 264001393 is about 641.5079943041.

The spelling of 264001393 in words is "two hundred sixty-four million, one thousand, three hundred ninety-three".