63495729 has 12 divisors (see below), whose sum is σ = 100054032. Its totient is φ = 38482200.

The previous prime is 63495727. The next prime is 63495767. The reversal of 63495729 is 92759436.

It is a happy number.

63495729 is a `hidden beast` number, since 634 + 9 + 5 + 7 + 2 + 9 = 666.

It is not a de Polignac number, because 63495729 - 2¹ = 63495727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63495727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320587 + ... + 320784.

It is an arithmetic number, because the mean of its divisors is an integer number (8337836).

Almost surely, 2^63495729 is an apocalyptic number.

It is an amenable number.

63495729 is a deficient number, since it is larger than the sum of its proper divisors (36558303).

63495729 is a wasteful number, since it uses less digits than its factorization.

63495729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641388 (or 641385 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 63495729 is about 7968.4207343739. The cubic root of 63495729 is about 398.9466640599.

The spelling of 63495729 in words is "sixty-three million, four hundred ninety-five thousand, seven hundred twenty-nine".