63748906 has 8 divisors (see below), whose sum is σ = 102979044. Its totient is φ = 29422560.

The previous prime is 63748903. The next prime is 63748957. The reversal of 63748906 is 60984736.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63345681 + 403225 = 7959^2 + 635^2 .

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

It is not an unprimeable number, because it can be changed into a prime (63748903) 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, 1225915 + ... + 1225966.

Almost surely, 2^63748906 is an apocalyptic number.

63748906 is a deficient number, since it is larger than the sum of its proper divisors (39230138).

63748906 is a wasteful number, since it uses less digits than its factorization.

63748906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451896.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 63748906 is about 7984.2912021043. The cubic root of 63748906 is about 399.4762018882.

The spelling of 63748906 in words is "sixty-three million, seven hundred forty-eight thousand, nine hundred six".