689769400 has 48 divisors (see below), whose sum is σ = 1619639640. Its totient is φ = 273168000.

The previous prime is 689769391. The next prime is 689769403. The reversal of 689769400 is 4967986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689769403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3127 + ... + 37273.

Almost surely, 2^689769400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689769400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809819820).

689769400 is an abundant number, since it is smaller than the sum of its proper divisors (929870240).

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

689769400 is a wasteful number, since it uses less digits than its factorization.

689769400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34264 (or 34255 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 689769400 is about 26263.4613103452. The cubic root of 689769400 is about 883.5571411853.

The spelling of 689769400 in words is "six hundred eighty-nine million, seven hundred sixty-nine thousand, four hundred".