1673898725 has 6 divisors (see below), whose sum is σ = 2075634450. Its totient is φ = 1339118960.

The previous prime is 1673898713. The next prime is 1673898731. The reversal of 1673898725 is 5278983761.

It can be written as a sum of positive squares in 3 ways, for example, as 3214849 + 1670683876 = 1793^2 + 40874^2 .

It is not a de Polignac number, because 1673898725 - 2²⁰ = 1672850149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33477950 + ... + 33477999.

It is an arithmetic number, because the mean of its divisors is an integer number (345939075).

Almost surely, 2^1673898725 is an apocalyptic number.

It is an amenable number.

1673898725 is a deficient number, since it is larger than the sum of its proper divisors (401735725).

1673898725 is an equidigital number, since it uses as much as digits as its factorization.

1673898725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66955959 (or 66955954 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 56.

The square root of 1673898725 is about 40913.3074316902. The cubic root of 1673898725 is about 1187.3435376499.

The spelling of 1673898725 in words is "one billion, six hundred seventy-three million, eight hundred ninety-eight thousand, seven hundred twenty-five".