1687892425 has 24 divisors (see below), whose sum is σ = 2117364480. Its totient is φ = 1334673600.

The previous prime is 1687892419. The next prime is 1687892449. The reversal of 1687892425 is 5242987861.

It is not a de Polignac number, because 1687892425 - 2⁹ = 1687891913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 958696 + ... + 960454.

It is an arithmetic number, because the mean of its divisors is an integer number (88223520).

Almost surely, 2^1687892425 is an apocalyptic number.

It is an amenable number.

1687892425 is a deficient number, since it is larger than the sum of its proper divisors (429472055).

1687892425 is a wasteful number, since it uses less digits than its factorization.

1687892425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193 (or 2188 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 1687892425 is about 41083.9679802231. The cubic root of 1687892425 is about 1190.6430686171.

The spelling of 1687892425 in words is "one billion, six hundred eighty-seven million, eight hundred ninety-two thousand, four hundred twenty-five".