264898393 has 2 divisors, whose sum is σ = 264898394. Its totient is φ = 264898392.

The previous prime is 264898363. The next prime is 264898409. The reversal of 264898393 is 393898462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264777984 + 120409 = 16272^2 + 347^2 .

It is a cyclic number.

It is not a de Polignac number, because 264898393 - 2²⁵ = 231343961 is a prime.

It is a super-2 number, since 2×264898393² = 140342317227964898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 264898393.

It is not a weakly prime, because it can be changed into another prime (264898303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132449196 + 132449197.

It is an arithmetic number, because the mean of its divisors is an integer number (132449197).

Almost surely, 2^264898393 is an apocalyptic number.

It is an amenable number.

264898393 is a deficient number, since it is larger than the sum of its proper divisors (1).

264898393 is an equidigital number, since it uses as much as digits as its factorization.

264898393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 52.

The square root of 264898393 is about 16275.6994626959. The cubic root of 264898393 is about 642.2337255513.

The spelling of 264898393 in words is "two hundred sixty-four million, eight hundred ninety-eight thousand, three hundred ninety-three".