684572846 has 4 divisors (see below), whose sum is σ = 1026859272. Its totient is φ = 342286422.

The previous prime is 684572843. The next prime is 684572879. The reversal of 684572846 is 648275486.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 684572794 and 684572803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684572843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171143210 + ... + 171143213.

It is an arithmetic number, because the mean of its divisors is an integer number (256714818).

Almost surely, 2^684572846 is an apocalyptic number.

684572846 is a deficient number, since it is larger than the sum of its proper divisors (342286426).

684572846 is a wasteful number, since it uses less digits than its factorization.

684572846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342286425.

The product of its digits is 2580480, while the sum is 50.

The square root of 684572846 is about 26164.3430263403. The cubic root of 684572846 is about 881.3327112080.

The spelling of 684572846 in words is "six hundred eighty-four million, five hundred seventy-two thousand, eight hundred forty-six".