63718949 has 8 divisors (see below), whose sum is σ = 73040448. Its totient is φ = 54452160.

The previous prime is 63718939. The next prime is 63718973. The reversal of 63718949 is 94981736.

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

It is not a de Polignac number, because 63718949 - 2⁴ = 63718933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63718939) 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, 11147 + ... + 15864.

It is an arithmetic number, because the mean of its divisors is an integer number (9130056).

Almost surely, 2^63718949 is an apocalyptic number.

It is an amenable number.

63718949 is a deficient number, since it is larger than the sum of its proper divisors (9321499).

63718949 is a wasteful number, since it uses less digits than its factorization.

63718949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27355.

The product of its digits is 326592, while the sum is 47.

The square root of 63718949 is about 7982.4149854540. The cubic root of 63718949 is about 399.4136178934.

The spelling of 63718949 in words is "sixty-three million, seven hundred eighteen thousand, nine hundred forty-nine".