1687979114 has 16 divisors (see below), whose sum is σ = 2666973600. Its totient is φ = 799046064.

The previous prime is 1687979107. The next prime is 1687979119. The reversal of 1687979114 is 4119797861.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1687979119) 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, 47804 + ... + 75240.

It is an arithmetic number, because the mean of its divisors is an integer number (166685850).

Almost surely, 2^1687979114 is an apocalyptic number.

1687979114 is a deficient number, since it is larger than the sum of its proper divisors (978994486).

1687979114 is a wasteful number, since it uses less digits than its factorization.

1687979114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29077.

The product of its digits is 762048, while the sum is 53.

The square root of 1687979114 is about 41085.0229889190. The cubic root of 1687979114 is about 1190.6634518059.

The spelling of 1687979114 in words is "one billion, six hundred eighty-seven million, nine hundred seventy-nine thousand, one hundred fourteen".