69609798 has 48 divisors (see below), whose sum is σ = 161235360. Its totient is φ = 21627648.

The previous prime is 69609797. The next prime is 69609803. The reversal of 69609798 is 89790696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69609791) 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, 32311 + ... + 34397.

It is an arithmetic number, because the mean of its divisors is an integer number (3359070).

Almost surely, 2^69609798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69609798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80617680).

69609798 is an abundant number, since it is smaller than the sum of its proper divisors (91625562).

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

69609798 is a wasteful number, since it uses less digits than its factorization.

69609798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221 (or 2218 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 69609798 is about 8343.2486478589. The cubic root of 69609798 is about 411.3613246781.

It can be divided in two parts, 69609 and 798, that added together give a palindrome (70407).

The spelling of 69609798 in words is "sixty-nine million, six hundred nine thousand, seven hundred ninety-eight".