64807243 has 2 divisors, whose sum is σ = 64807244. Its totient is φ = 64807242.

The previous prime is 64807217. The next prime is 64807273. The reversal of 64807243 is 34270846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64807243 - 2²⁵ = 31252811 is a prime.

It is a super-2 number, since 2×64807243² = 8399957490522098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64807199 and 64807208.

It is not a weakly prime, because it can be changed into another prime (64807273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32403621 + 32403622.

It is an arithmetic number, because the mean of its divisors is an integer number (32403622).

Almost surely, 2^64807243 is an apocalyptic number.

64807243 is a deficient number, since it is larger than the sum of its proper divisors (1).

64807243 is an equidigital number, since it uses as much as digits as its factorization.

64807243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 64807243 is about 8050.2945908830. The cubic root of 64807243 is about 401.6747346240.

The spelling of 64807243 in words is "sixty-four million, eight hundred seven thousand, two hundred forty-three".