63489697 has 8 divisors (see below), whose sum is σ = 67102560. Its totient is φ = 59904000.

The previous prime is 63489677. The next prime is 63489709. The reversal of 63489697 is 79698436.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63489697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63489667) 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, 1888 + ... + 11425.

It is an arithmetic number, because the mean of its divisors is an integer number (8387820).

Almost surely, 2^63489697 is an apocalyptic number.

It is an amenable number.

63489697 is a deficient number, since it is larger than the sum of its proper divisors (3612863).

63489697 is a wasteful number, since it uses less digits than its factorization.

63489697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13583.

The product of its digits is 1959552, while the sum is 52.

The square root of 63489697 is about 7968.0422313138. The cubic root of 63489697 is about 398.9340305462.

The spelling of 63489697 in words is "sixty-three million, four hundred eighty-nine thousand, six hundred ninety-seven".