63305994 has 16 divisors (see below), whose sum is σ = 134059968. Its totient is φ = 19860672.

The previous prime is 63305993. The next prime is 63306013. The reversal of 63305994 is 49950336.

It is not an unprimeable number, because it can be changed into a prime (63305993) 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, 310222 + ... + 310425.

It is an arithmetic number, because the mean of its divisors is an integer number (8378748).

Almost surely, 2^63305994 is an apocalyptic number.

63305994 is an abundant number, since it is smaller than the sum of its proper divisors (70753974).

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

63305994 is a wasteful number, since it uses less digits than its factorization.

63305994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620669.

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 63305994 is about 7956.5063941406. The cubic root of 63305994 is about 398.5488962774.

The spelling of 63305994 in words is "sixty-three million, three hundred five thousand, nine hundred ninety-four".