63729441 has 6 divisors (see below), whose sum is σ = 92053650. Its totient is φ = 42486288.

The previous prime is 63729437. The next prime is 63729467. The reversal of 63729441 is 14492736.

It can be written as a sum of positive squares in only one way, i.e., 54819216 + 8910225 = 7404^2 + 2985^2 .

It is not a de Polignac number, because 63729441 - 2² = 63729437 is a prime.

It is a super-2 number, since 2×63729441² = 8122883300344962, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 63729396 and 63729405.

It is not an unprimeable number, because it can be changed into a prime (63729431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3540516 + ... + 3540533.

It is an arithmetic number, because the mean of its divisors is an integer number (15342275).

Almost surely, 2^63729441 is an apocalyptic number.

It is an amenable number.

63729441 is a deficient number, since it is larger than the sum of its proper divisors (28324209).

63729441 is a wasteful number, since it uses less digits than its factorization.

63729441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7081055 (or 7081052 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 63729441 is about 7983.0721529997. The cubic root of 63729441 is about 399.4355392515.

The spelling of 63729441 in words is "sixty-three million, seven hundred twenty-nine thousand, four hundred forty-one".