1687112976 has 40 divisors (see below), whose sum is σ = 4476173824. Its totient is φ = 547171200.

The previous prime is 1687112971. The next prime is 1687112983. The reversal of 1687112976 is 6792117861.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1687112971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473200 + ... + 476751.

Almost surely, 2^1687112976 is an apocalyptic number.

1687112976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1687112976 is an abundant number, since it is smaller than the sum of its proper divisors (2789060848).

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

1687112976 is a wasteful number, since it uses less digits than its factorization.

1687112976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949999 (or 949993 counting only the distinct ones).

The product of its digits is 254016, while the sum is 48.

The square root of 1687112976 is about 41074.4808366460. The cubic root of 1687112976 is about 1190.4597653794.

The spelling of 1687112976 in words is "one billion, six hundred eighty-seven million, one hundred twelve thousand, nine hundred seventy-six".