1687070334 has 48 divisors (see below), whose sum is σ = 3463157376. Its totient is φ = 547780800.

The previous prime is 1687070317. The next prime is 1687070387. The reversal of 1687070334 is 4330707861.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1687070292 and 1687070301.

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 23 ways as a sum of consecutive naturals, for example, 7995489 + ... + 7995699.

It is an arithmetic number, because the mean of its divisors is an integer number (72149112).

Almost surely, 2^1687070334 is an apocalyptic number.

1687070334 is an abundant number, since it is smaller than the sum of its proper divisors (1776087042).

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

1687070334 is a wasteful number, since it uses less digits than its factorization.

1687070334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 1687070334 is about 41073.9617519421. The cubic root of 1687070334 is about 1190.4497356197.

The spelling of 1687070334 in words is "one billion, six hundred eighty-seven million, seventy thousand, three hundred thirty-four".