63945007 has 24 divisors (see below), whose sum is σ = 78876896. Its totient is φ = 50761728.

The previous prime is 63944981. The next prime is 63945017. The reversal of 63945007 is 70054936.

It is not a de Polignac number, because 63945007 - 2¹¹ = 63942959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63945017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147463 + ... + 147895.

Almost surely, 2^63945007 is an apocalyptic number.

63945007 is a deficient number, since it is larger than the sum of its proper divisors (14931889).

63945007 is a wasteful number, since it uses less digits than its factorization.

63945007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 63945007 is about 7996.5621988452. The cubic root of 63945007 is about 399.8853984193.

The spelling of 63945007 in words is "sixty-three million, nine hundred forty-five thousand, seven".