684245633 has 8 divisors (see below), whose sum is σ = 714458880. Its totient is φ = 654473680.

The previous prime is 684245603. The next prime is 684245641. The reversal of 684245633 is 336542486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 684245633 - 2¹⁰ = 684244609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (684245603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107153 + ... + 113358.

It is an arithmetic number, because the mean of its divisors is an integer number (89307360).

Almost surely, 2^684245633 is an apocalyptic number.

It is an amenable number.

684245633 is a deficient number, since it is larger than the sum of its proper divisors (30213247).

684245633 is a wasteful number, since it uses less digits than its factorization.

684245633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220647.

The product of its digits is 414720, while the sum is 41.

The square root of 684245633 is about 26158.0892459675. The cubic root of 684245633 is about 881.1922686524.

The spelling of 684245633 in words is "six hundred eighty-four million, two hundred forty-five thousand, six hundred thirty-three".