6463081 has 2 divisors, whose sum is σ = 6463082. Its totient is φ = 6463080.

The previous prime is 6463073. The next prime is 6463099. The reversal of 6463081 is 1803646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6456681 + 6400 = 2541^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 6463081 - 2³ = 6463073 is a prime.

It is a super-2 number, since 2×6463081² = 83542832025122, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6463001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3231540 + 3231541.

It is an arithmetic number, because the mean of its divisors is an integer number (3231541).

Almost surely, 2^6463081 is an apocalyptic number.

It is an amenable number.

6463081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6463081 is an equidigital number, since it uses as much as digits as its factorization.

6463081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 6463081 is about 2542.2590347956. The cubic root of 6463081 is about 186.2715519405.

The spelling of 6463081 in words is "six million, four hundred sixty-three thousand, eighty-one".