63869800 has 48 divisors (see below), whose sum is σ = 152138700. Its totient is φ = 24921600.

The previous prime is 63869791. The next prime is 63869809. The reversal of 63869800 is 896836.

It is an interprime number because it is at equal distance from previous prime (63869791) and next prime (63869809).

It can be written as a sum of positive squares in 6 ways, for example, as 10023556 + 53846244 = 3166^2 + 7338^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (63869809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4306 + ... + 12094.

Almost surely, 2^63869800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63869800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76069350).

63869800 is an abundant number, since it is smaller than the sum of its proper divisors (88268900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63869800 is a wasteful number, since it uses less digits than its factorization.

63869800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7846 (or 7837 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 63869800 is about 7991.8583571032. The cubic root of 63869800 is about 399.7285658504.

The spelling of 63869800 in words is "sixty-three million, eight hundred sixty-nine thousand, eight hundred".