63718541 has 4 divisors (see below), whose sum is σ = 64669632. Its totient is φ = 62767452.

The previous prime is 63718537. The next prime is 63718549. The reversal of 63718541 is 14581736.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63718541 - 2² = 63718537 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 (63718549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475445 + ... + 475578.

It is an arithmetic number, because the mean of its divisors is an integer number (16167408).

Almost surely, 2^63718541 is an apocalyptic number.

It is an amenable number.

63718541 is a deficient number, since it is larger than the sum of its proper divisors (951091).

63718541 is an equidigital number, since it uses as much as digits as its factorization.

63718541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951090.

The product of its digits is 20160, while the sum is 35.

The square root of 63718541 is about 7982.3894292373. The cubic root of 63718541 is about 399.4127653940.

The spelling of 63718541 in words is "sixty-three million, seven hundred eighteen thousand, five hundred forty-one".