459693881 has 2 divisors, whose sum is σ = 459693882. Its totient is φ = 459693880.

The previous prime is 459693863. The next prime is 459693911. The reversal of 459693881 is 188396954.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 427827856 + 31866025 = 20684^2 + 5645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-459693881 is a prime.

It is a super-2 number, since 2×459693881² = 422636928457684322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (459699881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229846940 + 229846941.

It is an arithmetic number, because the mean of its divisors is an integer number (229846941).

Almost surely, 2^459693881 is an apocalyptic number.

It is an amenable number.

459693881 is a deficient number, since it is larger than the sum of its proper divisors (1).

459693881 is an equidigital number, since it uses as much as digits as its factorization.

459693881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 53.

The square root of 459693881 is about 21440.4729658653. The cubic root of 459693881 is about 771.7729881216.

The spelling of 459693881 in words is "four hundred fifty-nine million, six hundred ninety-three thousand, eight hundred eighty-one".