264632993 has 2 divisors, whose sum is σ = 264632994. Its totient is φ = 264632992.

The previous prime is 264632981. The next prime is 264633037. The reversal of 264632993 is 399236462.

It is an a-pointer prime, because the next prime (264633037) can be obtained adding 264632993 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253828624 + 10804369 = 15932^2 + 3287^2 .

It is a cyclic number.

It is not a de Polignac number, because 264632993 - 2¹⁴ = 264616609 is a prime.

It is not a weakly prime, because it can be changed into another prime (264632903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132316496 + 132316497.

It is an arithmetic number, because the mean of its divisors is an integer number (132316497).

Almost surely, 2^264632993 is an apocalyptic number.

It is an amenable number.

264632993 is a deficient number, since it is larger than the sum of its proper divisors (1).

264632993 is an equidigital number, since it uses as much as digits as its factorization.

264632993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 44.

The square root of 264632993 is about 16267.5441600753. The cubic root of 264632993 is about 642.0191705989.

The spelling of 264632993 in words is "two hundred sixty-four million, six hundred thirty-two thousand, nine hundred ninety-three".