1689474 has 8 divisors (see below), whose sum is σ = 3378960. Its totient is φ = 563156.

The previous prime is 1689451. The next prime is 1689497. The reversal of 1689474 is 4749861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1689451) and next prime (1689497).

It is a sphenic number, since it is the product of 3 distinct primes.

1689474 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140784 + ... + 140795.

It is an arithmetic number, because the mean of its divisors is an integer number (422370).

2^1689474 is an apocalyptic number.

1689474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1689474 is a wasteful number, since it uses less digits than its factorization.

1689474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281584.

The product of its digits is 48384, while the sum is 39.

The square root of 1689474 is about 1299.7976765635. The cubic root of 1689474 is about 119.1014834698.

The spelling of 1689474 in words is "one million, six hundred eighty-nine thousand, four hundred seventy-four".