63433820 has 24 divisors (see below), whose sum is σ = 133423584. Its totient is φ = 25333056.

The previous prime is 63433813. The next prime is 63433823. The reversal of 63433820 is 2833436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63433823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12497 + ... + 16823.

It is an arithmetic number, because the mean of its divisors is an integer number (5559316).

Almost surely, 2^63433820 is an apocalyptic number.

It is an amenable number.

63433820 is an abundant number, since it is smaller than the sum of its proper divisors (69989764).

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

63433820 is a wasteful number, since it uses less digits than its factorization.

63433820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5069 (or 5067 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 63433820 is about 7964.5351402326. The cubic root of 63433820 is about 398.8169628405.

The spelling of 63433820 in words is "sixty-three million, four hundred thirty-three thousand, eight hundred twenty".