63973305 has 72 divisors (see below), whose sum is σ = 126147840. Its totient is φ = 29937600.

The previous prime is 63973277. The next prime is 63973337. The reversal of 63973305 is 50337936.

It is not a de Polignac number, because 63973305 - 2⁶ = 63973241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63973305.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 168606 + ... + 168984.

Almost surely, 2^63973305 is an apocalyptic number.

It is an amenable number.

63973305 is a deficient number, since it is larger than the sum of its proper divisors (62174535).

63973305 is a wasteful number, since it uses less digits than its factorization.

63973305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 36.

The square root of 63973305 is about 7998.3313884835. The cubic root of 63973305 is about 399.9443776824.

The spelling of 63973305 in words is "sixty-three million, nine hundred seventy-three thousand, three hundred five".