637098 has 48 divisors (see below), whose sum is σ = 1625184. Its totient is φ = 164640.

The previous prime is 637097. The next prime is 637129. The reversal of 637098 is 890736.

It is a happy number.

637098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (637097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3136 + ... + 3332.

It is an arithmetic number, because the mean of its divisors is an integer number (33858).

2⁶³⁷⁰⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 637098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (812592).

637098 is an abundant number, since it is smaller than the sum of its proper divisors (988086).

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

637098 is a wasteful number, since it uses less digits than its factorization.

637098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 637098 is about 798.1841892696. The cubic root of 637098 is about 86.0469367004.

637098 divided by its sum of digits (33) gives a triangular number (19306 = T₁₉₆).

The spelling of 637098 in words is "six hundred thirty-seven thousand, ninety-eight".