684648094 has 32 divisors (see below), whose sum is σ = 1144342080. Its totient is φ = 305184000.

The previous prime is 684648091. The next prime is 684648103. The reversal of 684648094 is 490846486.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684648091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104487 + ... + 110845.

It is an arithmetic number, because the mean of its divisors is an integer number (35760690).

Almost surely, 2^684648094 is an apocalyptic number.

684648094 is a deficient number, since it is larger than the sum of its proper divisors (459693986).

684648094 is a wasteful number, since it uses less digits than its factorization.

684648094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6516.

The product of its (nonzero) digits is 1327104, while the sum is 49.

The square root of 684648094 is about 26165.7809743948. The cubic root of 684648094 is about 881.3650019493.

The spelling of 684648094 in words is "six hundred eighty-four million, six hundred forty-eight thousand, ninety-four".