1678295089 has 9 divisors (see below), whose sum is σ = 1705221291. Its totient is φ = 1651789440.

The previous prime is 1678295077. The next prime is 1678295093. The reversal of 1678295089 is 9805928761.

The square root of 1678295089 is 40967.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1666680625 + 11614464 = 40825^2 + 3408^2 .

It is not a de Polignac number, because 1678295089 - 2²⁷ = 1544077361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1678215089) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2908369 + ... + 2908945.

Almost surely, 2^1678295089 is an apocalyptic number.

1678295089 is the 40967-th square number.

1678295089 is the 20484-th centered octagonal number.

It is an amenable number.

1678295089 is a deficient number, since it is larger than the sum of its proper divisors (26926202).

1678295089 is an frugal number, since it uses more digits than its factorization.

1678295089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 55.

The cubic root of 1678295089 is about 1188.3821172234.

The spelling of 1678295089 in words is "one billion, six hundred seventy-eight million, two hundred ninety-five thousand, eighty-nine".