1689354236 has 12 divisors (see below), whose sum is σ = 2957859912. Its totient is φ = 844251408.

The previous prime is 1689354217. The next prime is 1689354259. The reversal of 1689354236 is 6324539861.

It is a super-2 number, since 2×1689354236² = 5707835469382287392, which contains 22 as substring.

It is a congruent 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, 97415 + ... + 113438.

It is an arithmetic number, because the mean of its divisors is an integer number (246488326).

Almost surely, 2^1689354236 is an apocalyptic number.

It is an amenable number.

1689354236 is a deficient number, since it is larger than the sum of its proper divisors (1268505676).

1689354236 is a wasteful number, since it uses less digits than its factorization.

1689354236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212860 (or 212858 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

The square root of 1689354236 is about 41101.7546584084. The cubic root of 1689354236 is about 1190.9866910136.

The spelling of 1689354236 in words is "one billion, six hundred eighty-nine million, three hundred fifty-four thousand, two hundred thirty-six".