63683081 has 16 divisors (see below), whose sum is σ = 79678080. Its totient is φ = 49447680.

The previous prime is 63683069. The next prime is 63683143. The reversal of 63683081 is 18038636.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 63683081 - 2¹⁴ = 63666697 is a prime.

It is a super-2 number, since 2×63683081² = 8111069611305122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63683881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23105 + ... + 25713.

It is an arithmetic number, because the mean of its divisors is an integer number (4979880).

Almost surely, 2^63683081 is an apocalyptic number.

It is an amenable number.

63683081 is a deficient number, since it is larger than the sum of its proper divisors (15994999).

63683081 is a wasteful number, since it uses less digits than its factorization.

63683081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 63683081 is about 7980.1679806881. The cubic root of 63683081 is about 399.3386592570.

It can be divided in two parts, 6368 and 3081, that added together give a palindrome (9449).

The spelling of 63683081 in words is "sixty-three million, six hundred eighty-three thousand, eighty-one".