63785490 has 32 divisors (see below), whose sum is σ = 155684160. Its totient is φ = 16720704.

The previous prime is 63785459. The next prime is 63785503. The reversal of 63785490 is 9458736.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16249 + ... + 19788.

It is an arithmetic number, because the mean of its divisors is an integer number (4865130).

Almost surely, 2^63785490 is an apocalyptic number.

63785490 is an abundant number, since it is smaller than the sum of its proper divisors (91898670).

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

63785490 is a wasteful number, since it uses less digits than its factorization.

63785490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36106.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 63785490 is about 7986.5818721153. The cubic root of 63785490 is about 399.5526039452.

The spelling of 63785490 in words is "sixty-three million, seven hundred eighty-five thousand, four hundred ninety".