63437481 has 24 divisors (see below), whose sum is σ = 93483936. Its totient is φ = 41446080.

The previous prime is 63437467. The next prime is 63437483. The reversal of 63437481 is 18473436.

It is not a de Polignac number, because 63437481 - 2¹⁸ = 63175337 is a prime.

It is a super-2 number, since 2×63437481² = 8048627991250722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63437483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121501 + ... + 122021.

It is an arithmetic number, because the mean of its divisors is an integer number (3895164).

Almost surely, 2^63437481 is an apocalyptic number.

It is an amenable number.

63437481 is a deficient number, since it is larger than the sum of its proper divisors (30046455).

63437481 is a wasteful number, since it uses less digits than its factorization.

63437481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 770 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 63437481 is about 7964.7649682837. The cubic root of 63437481 is about 398.8246350928.

It can be divided in two parts, 6343 and 7481, that added together give a cube (13824 = 24³).

The spelling of 63437481 in words is "sixty-three million, four hundred thirty-seven thousand, four hundred eighty-one".