63689351 has 8 divisors (see below), whose sum is σ = 69546384. Its totient is φ = 57843520.

The previous prime is 63689347. The next prime is 63689363. The reversal of 63689351 is 15398636.

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 63689351 - 2² = 63689347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63689299 and 63689308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63689341) 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, 12995 + ... + 17211.

It is an arithmetic number, because the mean of its divisors is an integer number (8693298).

Almost surely, 2^63689351 is an apocalyptic number.

63689351 is a deficient number, since it is larger than the sum of its proper divisors (5857033).

63689351 is a wasteful number, since it uses less digits than its factorization.

63689351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601.

The product of its digits is 116640, while the sum is 41.

The square root of 63689351 is about 7980.5608198923. The cubic root of 63689351 is about 399.3517646281.

The spelling of 63689351 in words is "sixty-three million, six hundred eighty-nine thousand, three hundred fifty-one".