63776677 has 8 divisors (see below), whose sum is σ = 66660480. Its totient is φ = 60902160.

The previous prime is 63776653. The next prime is 63776681. The reversal of 63776677 is 77667736.

It is a happy number.

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

It is not a de Polignac number, because 63776677 - 2⁷ = 63776549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63776677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63776177) 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, 14352 + ... + 18262.

It is an arithmetic number, because the mean of its divisors is an integer number (8332560).

Almost surely, 2^63776677 is an apocalyptic number.

It is an amenable number.

63776677 is a deficient number, since it is larger than the sum of its proper divisors (2883803).

63776677 is a wasteful number, since it uses less digits than its factorization.

63776677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4643.

The product of its digits is 1555848, while the sum is 49.

The square root of 63776677 is about 7986.0301151448. The cubic root of 63776677 is about 399.5342015400.

The spelling of 63776677 in words is "sixty-three million, seven hundred seventy-six thousand, six hundred seventy-seven".