684573071 has 12 divisors (see below), whose sum is σ = 857597832. Its totient is φ = 541639728.

The previous prime is 684573067. The next prime is 684573073. The reversal of 684573071 is 170375486.

684573071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 684573071 - 2² = 684573067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684573073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 536705 + ... + 537978.

It is an arithmetic number, because the mean of its divisors is an integer number (71466486).

Almost surely, 2^684573071 is an apocalyptic number.

684573071 is a deficient number, since it is larger than the sum of its proper divisors (173024761).

684573071 is a wasteful number, since it uses less digits than its factorization.

684573071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074710 (or 1074703 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 684573071 is about 26164.3473260848. The cubic root of 684573071 is about 881.3328077645.

The spelling of 684573071 in words is "six hundred eighty-four million, five hundred seventy-three thousand, seventy-one".