63677289 has 8 divisors (see below), whose sum is σ = 91434112. Its totient is φ = 39186000.

The previous prime is 63677279. The next prime is 63677309. The reversal of 63677289 is 98277636.

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

It is not a de Polignac number, because 63677289 - 2⁹ = 63676777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63677249) 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, 816337 + ... + 816414.

It is an arithmetic number, because the mean of its divisors is an integer number (11429264).

Almost surely, 2^63677289 is an apocalyptic number.

It is an amenable number.

63677289 is a deficient number, since it is larger than the sum of its proper divisors (27756823).

63677289 is a wasteful number, since it uses less digits than its factorization.

63677289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632767.

The product of its digits is 762048, while the sum is 48.

The square root of 63677289 is about 7979.8050728072. The cubic root of 63677289 is about 399.3265522232.

The spelling of 63677289 in words is "sixty-three million, six hundred seventy-seven thousand, two hundred eighty-nine".