63728007 has 8 divisors (see below), whose sum is σ = 97109376. Its totient is φ = 36415992.

The previous prime is 63727999. The next prime is 63728011. The reversal of 63728007 is 70082736.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63728007 - 2³ = 63727999 is a prime.

It is a super-2 number, since 2×63728007² = 8122517752384098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63728047) 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, 1517313 + ... + 1517354.

It is an arithmetic number, because the mean of its divisors is an integer number (12138672).

Almost surely, 2^63728007 is an apocalyptic number.

63728007 is a deficient number, since it is larger than the sum of its proper divisors (33381369).

63728007 is a wasteful number, since it uses less digits than its factorization.

63728007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034677.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 63728007 is about 7982.9823374476. The cubic root of 63728007 is about 399.4325432795.

The spelling of 63728007 in words is "sixty-three million, seven hundred twenty-eight thousand, seven".