63668077 has 16 divisors (see below), whose sum is σ = 74291904. Its totient is φ = 53920000.

The previous prime is 63668057. The next prime is 63668089. The reversal of 63668077 is 77086636.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63668077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63668047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17202 + ... + 20572.

It is an arithmetic number, because the mean of its divisors is an integer number (4643244).

Almost surely, 2^63668077 is an apocalyptic number.

It is an amenable number.

63668077 is a deficient number, since it is larger than the sum of its proper divisors (10623827).

63668077 is a wasteful number, since it uses less digits than its factorization.

63668077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500.

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

The square root of 63668077 is about 7979.2278448481. The cubic root of 63668077 is about 399.3072948414.

The spelling of 63668077 in words is "sixty-three million, six hundred sixty-eight thousand, seventy-seven".