864279413 has 2 divisors, whose sum is σ = 864279414. Its totient is φ = 864279412.

The previous prime is 864279397. The next prime is 864279457. The reversal of 864279413 is 314972468.

It is an a-pointer prime, because the next prime (864279457) can be obtained adding 864279413 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., 757735729 + 106543684 = 27527^2 + 10322^2 .

It is a cyclic number.

It is not a de Polignac number, because 864279413 - 2⁴ = 864279397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864279463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432139706 + 432139707.

It is an arithmetic number, because the mean of its divisors is an integer number (432139707).

Almost surely, 2^864279413 is an apocalyptic number.

It is an amenable number.

864279413 is a deficient number, since it is larger than the sum of its proper divisors (1).

864279413 is an equidigital number, since it uses as much as digits as its factorization.

864279413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 864279413 is about 29398.6294408430. The cubic root of 864279413 is about 952.5432915249.

The spelling of 864279413 in words is "eight hundred sixty-four million, two hundred seventy-nine thousand, four hundred thirteen".