63993492 has 36 divisors (see below), whose sum is σ = 163587060. Its totient is φ = 21090432.

The previous prime is 63993487. The next prime is 63993493. The reversal of 63993492 is 29439936.

63993492 is a `hidden beast` number, since 639 + 9 + 3 + 4 + 9 + 2 = 666.

63993492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17943696 + 46049796 = 4236^2 + 6786^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63993493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6783 + ... + 13190.

It is an arithmetic number, because the mean of its divisors is an integer number (4544085).

Almost surely, 2^63993492 is an apocalyptic number.

It is an amenable number.

63993492 is an abundant number, since it is smaller than the sum of its proper divisors (99593568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63993492 is a wasteful number, since it uses less digits than its factorization.

63993492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20072 (or 20067 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 63993492 is about 7999.5932396591. The cubic root of 63993492 is about 399.9864412071.

The spelling of 63993492 in words is "sixty-three million, nine hundred ninety-three thousand, four hundred ninety-two".