63787013 has 4 divisors (see below), whose sum is σ = 63816288. Its totient is φ = 63757740.

The previous prime is 63787007. The next prime is 63787051. The reversal of 63787013 is 31078736.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63787013 - 2⁴ = 63786997 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 (63787093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11081 + ... + 15822.

It is an arithmetic number, because the mean of its divisors is an integer number (15954072).

Almost surely, 2^63787013 is an apocalyptic number.

It is an amenable number.

63787013 is a deficient number, since it is larger than the sum of its proper divisors (29275).

63787013 is a wasteful number, since it uses less digits than its factorization.

63787013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29274.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 63787013 is about 7986.6772189691. The cubic root of 63787013 is about 399.5557839462. Note that the first 3 decimals are identical.

The spelling of 63787013 in words is "sixty-three million, seven hundred eighty-seven thousand, thirteen".