63601687 has 4 divisors (see below), whose sum is σ = 65080840. Its totient is φ = 62122536.

The previous prime is 63601661. The next prime is 63601691. The reversal of 63601687 is 78610636.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63601687 - 2¹⁵ = 63568919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63601697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739512 + ... + 739597.

It is an arithmetic number, because the mean of its divisors is an integer number (16270210).

Almost surely, 2^63601687 is an apocalyptic number.

63601687 is a deficient number, since it is larger than the sum of its proper divisors (1479153).

63601687 is a wasteful number, since it uses less digits than its factorization.

63601687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479152.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 63601687 is about 7975.0665827942. The cubic root of 63601687 is about 399.1684537751.

The spelling of 63601687 in words is "sixty-three million, six hundred one thousand, six hundred eighty-seven".