684070273 has 16 divisors (see below), whose sum is σ = 729856512. Its totient is φ = 640080000.

The previous prime is 684070271. The next prime is 684070279. The reversal of 684070273 is 372070486.

It is a cyclic number.

It is not a de Polignac number, because 684070273 - 2¹ = 684070271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (684070271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132093 + ... + 137173.

It is an arithmetic number, because the mean of its divisors is an integer number (45616032).

Almost surely, 2^684070273 is an apocalyptic number.

It is an amenable number.

684070273 is a deficient number, since it is larger than the sum of its proper divisors (45786239).

684070273 is a wasteful number, since it uses less digits than its factorization.

684070273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5256.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 684070273 is about 26154.7371043947. The cubic root of 684070273 is about 881.1169842460.

The spelling of 684070273 in words is "six hundred eighty-four million, seventy thousand, two hundred seventy-three".