63840098 has 16 divisors (see below), whose sum is σ = 112971264. Its totient is φ = 26477280.

The previous prime is 63840089. The next prime is 63840103. The reversal of 63840098 is 89004836.

It is a super-2 number, since 2×63840098² = 8151116225299208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73115 + ... + 73982.

It is an arithmetic number, because the mean of its divisors is an integer number (7060704).

Almost surely, 2^63840098 is an apocalyptic number.

63840098 is a deficient number, since it is larger than the sum of its proper divisors (49131166).

63840098 is a wasteful number, since it uses less digits than its factorization.

63840098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147137.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 63840098 is about 7989.9998748436. Note that the first 3 decimals coincide. The cubic root of 63840098 is about 399.6665930100. Note that the first 3 decimals are identical.

The spelling of 63840098 in words is "sixty-three million, eight hundred forty thousand, ninety-eight".