63850820 has 48 divisors (see below), whose sum is σ = 146821248. Its totient is φ = 23132160.

The previous prime is 63850819. The next prime is 63850867. The reversal of 63850820 is 2805836.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110372 + ... + 110948.

It is an arithmetic number, because the mean of its divisors is an integer number (3058776).

Almost surely, 2^63850820 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 63850820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73410624).

63850820 is an abundant number, since it is smaller than the sum of its proper divisors (82970428).

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

63850820 is a wasteful number, since it uses less digits than its factorization.

63850820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 63850820 is about 7990.6708103888. The cubic root of 63850820 is about 399.6889665415.

The spelling of 63850820 in words is "sixty-three million, eight hundred fifty thousand, eight hundred twenty".