684005694 has 16 divisors (see below), whose sum is σ = 1427490432. Its totient is φ = 218088728.

The previous prime is 684005683. The next prime is 684005713. The reversal of 684005694 is 496500486.

It is a congruent number.

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, 2478144 + ... + 2478419.

It is an arithmetic number, because the mean of its divisors is an integer number (89218152).

Almost surely, 2^684005694 is an apocalyptic number.

684005694 is an abundant number, since it is smaller than the sum of its proper divisors (743484738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

684005694 is a wasteful number, since it uses less digits than its factorization.

684005694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956591.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 684005694 is about 26153.5025187832. The cubic root of 684005694 is about 881.0892563713.

The spelling of 684005694 in words is "six hundred eighty-four million, five thousand, six hundred ninety-four".