1689374136 has 16 divisors (see below), whose sum is σ = 4223435400. Its totient is φ = 563124704.

The previous prime is 1689374131. The next prime is 1689374161. The reversal of 1689374136 is 6314739861.

It is a happy number.

1689374136 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689374131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35195271 + ... + 35195318.

Almost surely, 2^1689374136 is an apocalyptic number.

It is an amenable number.

1689374136 is an abundant number, since it is smaller than the sum of its proper divisors (2534061264).

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

1689374136 is a wasteful number, since it uses less digits than its factorization.

1689374136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70390598 (or 70390594 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 1689374136 is about 41101.9967398179. The cubic root of 1689374136 is about 1190.9913674637.

The spelling of 1689374136 in words is "one billion, six hundred eighty-nine million, three hundred seventy-four thousand, one hundred thirty-six".