63667087 has 8 divisors (see below), whose sum is σ = 71695872. Its totient is φ = 56011800.

The previous prime is 63667063. The next prime is 63667099. The reversal of 63667087 is 78076636.

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

It is a cyclic number.

It is not a de Polignac number, because 63667087 - 2¹⁹ = 63142799 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63667007) 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, 93013 + ... + 93694.

It is an arithmetic number, because the mean of its divisors is an integer number (8961984).

Almost surely, 2^63667087 is an apocalyptic number.

63667087 is a deficient number, since it is larger than the sum of its proper divisors (8028785).

63667087 is a wasteful number, since it uses less digits than its factorization.

63667087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186749.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 63667087 is about 7979.1658085291. The cubic root of 63667087 is about 399.3052251685.

The spelling of 63667087 in words is "sixty-three million, six hundred sixty-seven thousand, eighty-seven".