684276213 has 8 divisors (see below), whose sum is σ = 912735328. Its totient is φ = 456000624.

The previous prime is 684276211. The next prime is 684276217. The reversal of 684276213 is 312672486.

It is a happy number.

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

It is not a de Polignac number, because 684276213 - 2¹ = 684276211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684276211) 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, 36931 + ... + 52272.

It is an arithmetic number, because the mean of its divisors is an integer number (114091916).

Almost surely, 2^684276213 is an apocalyptic number.

It is an amenable number.

684276213 is a deficient number, since it is larger than the sum of its proper divisors (228459115).

684276213 is a wasteful number, since it uses less digits than its factorization.

684276213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91763.

The product of its digits is 96768, while the sum is 39.

The square root of 684276213 is about 26158.6737622533. The cubic root of 684276213 is about 881.2053957405.

The spelling of 684276213 in words is "six hundred eighty-four million, two hundred seventy-six thousand, two hundred thirteen".