1687013332 has 12 divisors (see below), whose sum is σ = 2958851700. Its totient is φ = 841627136.

The previous prime is 1687013311. The next prime is 1687013351. The reversal of 1687013332 is 2333107861.

It can be written as a sum of positive squares in 2 ways, for example, as 909384336 + 777628996 = 30156^2 + 27886^2 .

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, 467863 + ... + 471454.

It is an arithmetic number, because the mean of its divisors is an integer number (246570975).

Almost surely, 2^1687013332 is an apocalyptic number.

It is an amenable number.

1687013332 is a deficient number, since it is larger than the sum of its proper divisors (1271838368).

1687013332 is a wasteful number, since it uses less digits than its factorization.

1687013332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939770 (or 939768 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 1687013332 is about 41073.2678514871. The cubic root of 1687013332 is about 1190.4363280024.

The spelling of 1687013332 in words is "one billion, six hundred eighty-seven million, thirteen thousand, three hundred thirty-two".