63483981 has 36 divisors (see below), whose sum is σ = 96602688. Its totient is φ = 37039200.

The previous prime is 63483977. The next prime is 63484009. The reversal of 63483981 is 18938436.

It is a happy number.

It is not a de Polignac number, because 63483981 - 2² = 63483977 is a prime.

It is a super-2 number, since 2×63483981² = 8060431687216722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63483911) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1040691 + ... + 1040751.

It is an arithmetic number, because the mean of its divisors is an integer number (2683408).

Almost surely, 2^63483981 is an apocalyptic number.

63483981 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

63483981 is a deficient number, since it is larger than the sum of its proper divisors (33118707).

63483981 is a wasteful number, since it uses less digits than its factorization.

63483981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 122 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 63483981 is about 7967.6835404024. The cubic root of 63483981 is about 398.9220581294.

The spelling of 63483981 in words is "sixty-three million, four hundred eighty-three thousand, nine hundred eighty-one".