1689754932 has 96 divisors (see below), whose sum is σ = 4455158400. Its totient is φ = 560688480.

The previous prime is 1689754903. The next prime is 1689754981. The reversal of 1689754932 is 2394579861.

1689754932 is a `hidden beast` number, since 1 + 6 + 8 + 97 + 549 + 3 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3665182 + ... + 3665642.

It is an arithmetic number, because the mean of its divisors is an integer number (46407900).

Almost surely, 2^1689754932 is an apocalyptic number.

1689754932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1689754932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2227579200).

1689754932 is an abundant number, since it is smaller than the sum of its proper divisors (2765403468).

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

1689754932 is an equidigital number, since it uses as much as digits as its factorization.

1689754932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905 (or 885 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 1689754932 is about 41106.6288085024. The cubic root of 1689754932 is about 1191.0808464937.

The spelling of 1689754932 in words is "one billion, six hundred eighty-nine million, seven hundred fifty-four thousand, nine hundred thirty-two".