1684179425 has 12 divisors (see below), whose sum is σ = 2091660396. Its totient is φ = 1345228800.

The previous prime is 1684179397. The next prime is 1684179449. The reversal of 1684179425 is 5249714861.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 319837456 + 1364341969 = 17884^2 + 36937^2 .

It is not a de Polignac number, because 1684179425 - 2³⁰ = 610437601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1684179425.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 36524 + ... + 68573.

It is an arithmetic number, because the mean of its divisors is an integer number (174305033).

Almost surely, 2^1684179425 is an apocalyptic number.

It is an amenable number.

1684179425 is a deficient number, since it is larger than the sum of its proper divisors (407480971).

1684179425 is a wasteful number, since it uses less digits than its factorization.

1684179425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105748 (or 105743 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 1684179425 is about 41038.7551589957. The cubic root of 1684179425 is about 1189.7693748396.

The spelling of 1684179425 in words is "one billion, six hundred eighty-four million, one hundred seventy-nine thousand, four hundred twenty-five".