1679665974 has 32 divisors (see below), whose sum is σ = 3865017600. Its totient is φ = 476681952.

The previous prime is 1679665969. The next prime is 1679666017. The reversal of 1679665974 is 4795669761.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127944 + ... + 140459.

It is an arithmetic number, because the mean of its divisors is an integer number (120781800).

Almost surely, 2^1679665974 is an apocalyptic number.

1679665974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1679665974 is an abundant number, since it is smaller than the sum of its proper divisors (2185351626).

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

1679665974 is a wasteful number, since it uses less digits than its factorization.

1679665974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268564.

The product of its digits is 17146080, while the sum is 60.

The square root of 1679665974 is about 40983.7281613081. The cubic root of 1679665974 is about 1188.7055986450.

The spelling of 1679665974 in words is "one billion, six hundred seventy-nine million, six hundred sixty-five thousand, nine hundred seventy-four".