63938790 has 48 divisors (see below), whose sum is σ = 167738688. Its totient is φ = 16896768.

The previous prime is 63938779. The next prime is 63938843. The reversal of 63938790 is 9783936.

It is a happy number.

63938790 is a `hidden beast` number, since 639 + 3 + 8 + 7 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7027 + ... + 13313.

It is an arithmetic number, because the mean of its divisors is an integer number (3494556).

Almost surely, 2^63938790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63938790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83869344).

63938790 is an abundant number, since it is smaller than the sum of its proper divisors (103799898).

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

63938790 is a wasteful number, since it uses less digits than its factorization.

63938790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6413 (or 6410 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 63938790 is about 7996.1734598494. The cubic root of 63938790 is about 399.8724384911.

The spelling of 63938790 in words is "sixty-three million, nine hundred thirty-eight thousand, seven hundred ninety".