63698481 has 60 divisors (see below), whose sum is σ = 120835440. Its totient is φ = 33067440.

The previous prime is 63698429. The next prime is 63698539. The reversal of 63698481 is 18489636.

63698481 is a `hidden beast` number, since 636 + 9 + 8 + 4 + 8 + 1 = 666.

It is not a de Polignac number, because 63698481 - 2¹⁰ = 63697457 is a prime.

It is a super-2 number, since 2×63698481² = 8114992963414722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63698581) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 42930 + ... + 44388.

It is an arithmetic number, because the mean of its divisors is an integer number (2013924).

Almost surely, 2^63698481 is an apocalyptic number.

It is an amenable number.

63698481 is a deficient number, since it is larger than the sum of its proper divisors (57136959).

63698481 is a wasteful number, since it uses less digits than its factorization.

63698481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496 (or 1480 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 63698481 is about 7981.1328143316. The cubic root of 63698481 is about 399.3708463497.

The spelling of 63698481 in words is "sixty-three million, six hundred ninety-eight thousand, four hundred eighty-one".