63696490 has 32 divisors (see below), whose sum is σ = 134701056. Its totient is φ = 21380160.

The previous prime is 63696473. The next prime is 63696491. The reversal of 63696490 is 9469636.

It is not an unprimeable number, because it can be changed into a prime (63696491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20842 + ... + 23701.

It is an arithmetic number, because the mean of its divisors is an integer number (4209408).

Almost surely, 2^63696490 is an apocalyptic number.

63696490 is an abundant number, since it is smaller than the sum of its proper divisors (71004566).

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

63696490 is a wasteful number, since it uses less digits than its factorization.

63696490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44574.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 63696490 is about 7981.0080816899. The cubic root of 63696490 is about 399.3666853105.

The spelling of 63696490 in words is "sixty-three million, six hundred ninety-six thousand, four hundred ninety".