684561466 has 16 divisors (see below), whose sum is σ = 1072499904. Its totient is φ = 327089664.

The previous prime is 684561433. The next prime is 684561487. The reversal of 684561466 is 664165486.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46585 + ... + 59491.

It is an arithmetic number, because the mean of its divisors is an integer number (67031244).

Almost surely, 2^684561466 is an apocalyptic number.

684561466 is a deficient number, since it is larger than the sum of its proper divisors (387938438).

684561466 is a wasteful number, since it uses less digits than its factorization.

684561466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14085.

The product of its digits is 829440, while the sum is 46.

The square root of 684561466 is about 26164.1255538954. The cubic root of 684561466 is about 881.3278275681.

The spelling of 684561466 in words is "six hundred eighty-four million, five hundred sixty-one thousand, four hundred sixty-six".