63597798 has 80 divisors (see below), whose sum is σ = 157600080. Its totient is φ = 19008000.

The previous prime is 63597791. The next prime is 63597839. The reversal of 63597798 is 89779536.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63597791) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 158398 + ... + 158798.

It is an arithmetic number, because the mean of its divisors is an integer number (1970001).

Almost surely, 2^63597798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63597798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78800040).

63597798 is an abundant number, since it is smaller than the sum of its proper divisors (94002282).

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

63597798 is a wasteful number, since it uses less digits than its factorization.

63597798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 506 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 63597798 is about 7974.8227566511. The cubic root of 63597798 is about 399.1603177343.

The spelling of 63597798 in words is "sixty-three million, five hundred ninety-seven thousand, seven hundred ninety-eight".