63457830 has 80 divisors (see below), whose sum is σ = 172062000. Its totient is φ = 16780608.

The previous prime is 63457819. The next prime is 63457847. The reversal of 63457830 is 3875436.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 126921 + ... + 127419.

It is an arithmetic number, because the mean of its divisors is an integer number (2150775).

Almost surely, 2^63457830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63457830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86031000).

63457830 is an abundant number, since it is smaller than the sum of its proper divisors (108604170).

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

63457830 is a wasteful number, since it uses less digits than its factorization.

63457830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 63457830 is about 7966.0423046830. The cubic root of 63457830 is about 398.8672745270.

The spelling of 63457830 in words is "sixty-three million, four hundred fifty-seven thousand, eight hundred thirty".