1689476 has 6 divisors (see below), whose sum is σ = 2956590. Its totient is φ = 844736.

The previous prime is 1689451. The next prime is 1689497. The reversal of 1689476 is 6749861.

It can be written as a sum of positive squares in only one way, i.e., 1638400 + 51076 = 1280^2 + 226^2 .

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211181 + ... + 211188.

It is an arithmetic number, because the mean of its divisors is an integer number (492765).

2^1689476 is an apocalyptic number.

It is an amenable number.

1689476 is a deficient number, since it is larger than the sum of its proper divisors (1267114).

1689476 is a wasteful number, since it uses less digits than its factorization.

1689476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422373 (or 422371 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 1689476 is about 1299.7984459138. The cubic root of 1689476 is about 119.1015304673.

The spelling of 1689476 in words is "one million, six hundred eighty-nine thousand, four hundred seventy-six".