63398790 has 96 divisors (see below), whose sum is σ = 202902336. Its totient is φ = 13374720.

The previous prime is 63398779. The next prime is 63398827. The reversal of 63398790 is 9789336.

It is a happy number.

63398790 is a `hidden beast` number, since 633 + 9 + 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 47 ways as a sum of consecutive naturals, for example, 4320 + ... + 12060.

It is an arithmetic number, because the mean of its divisors is an integer number (2113566).

Almost surely, 2^63398790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63398790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101451168).

63398790 is an abundant number, since it is smaller than the sum of its proper divisors (139503546).

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

63398790 is a wasteful number, since it uses less digits than its factorization.

63398790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7774 (or 7771 counting only the distinct ones).

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

The square root of 63398790 is about 7962.3357125909. The cubic root of 63398790 is about 398.7435365481.

It can be divided in two parts, 6339 and 8790, that added together give a square (15129 = 123²).

The spelling of 63398790 in words is "sixty-three million, three hundred ninety-eight thousand, seven hundred ninety".