63729041 has 4 divisors (see below), whose sum is σ = 63750372. Its totient is φ = 63707712.

The previous prime is 63729031. The next prime is 63729089. The reversal of 63729041 is 14092736.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39325441 + 24403600 = 6271^2 + 4940^2 .

It is a cyclic number.

It is not a de Polignac number, because 63729041 - 2²² = 59534737 is a prime.

It is a super-2 number, since 2×63729041² = 8122781333559362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 63728989 and 63729007.

It is not an unprimeable number, because it can be changed into a prime (63729031) 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, 5276 + ... + 12461.

It is an arithmetic number, because the mean of its divisors is an integer number (15937593).

Almost surely, 2^63729041 is an apocalyptic number.

It is an amenable number.

63729041 is a deficient number, since it is larger than the sum of its proper divisors (21331).

63729041 is a wasteful number, since it uses less digits than its factorization.

63729041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21330.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 63729041 is about 7983.0470999487. The cubic root of 63729041 is about 399.4347035595.

The spelling of 63729041 in words is "sixty-three million, seven hundred twenty-nine thousand, forty-one".