1676671609 has 16 divisors (see below), whose sum is σ = 1744395840. Its totient is φ = 1610481600.

The previous prime is 1676671543. The next prime is 1676671669. The reversal of 1676671609 is 9061766761.

It is a cyclic number.

It is not a de Polignac number, because 1676671609 - 2²⁷ = 1542453881 is a prime.

It is a super-2 number, since 2×1676671609² = 5622455368853297762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1676671669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680622 + ... + 683080.

It is an arithmetic number, because the mean of its divisors is an integer number (109024740).

Almost surely, 2^1676671609 is an apocalyptic number.

It is an amenable number.

1676671609 is a deficient number, since it is larger than the sum of its proper divisors (67724231).

1676671609 is a wasteful number, since it uses less digits than its factorization.

1676671609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 1676671609 is about 40947.1807210216. The cubic root of 1676671609 is about 1187.9988042119.

The spelling of 1676671609 in words is "one billion, six hundred seventy-six million, six hundred seventy-one thousand, six hundred nine".