63970830 has 256 divisors, whose sum is σ = 226437120. Its totient is φ = 12441600.

The previous prime is 63970801. The next prime is 63970861. The reversal of 63970830 is 3807936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 353340 + ... + 353520.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^63970830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63970830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113218560).

63970830 is an abundant number, since it is smaller than the sum of its proper divisors (162466290).

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

63970830 is a wasteful number, since it uses less digits than its factorization.

63970830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 63970830 is about 7998.1766672161. The cubic root of 63970830 is about 399.9392199316.

The spelling of 63970830 in words is "sixty-three million, nine hundred seventy thousand, eight hundred thirty".