684404486 has 4 divisors (see below), whose sum is σ = 1026606732. Its totient is φ = 342202242.

The previous prime is 684404473. The next prime is 684404521.

684404486 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171101120 + ... + 171101123.

It is an arithmetic number, because the mean of its divisors is an integer number (256651683).

Almost surely, 2^684404486 is an apocalyptic number.

684404486 is a deficient number, since it is larger than the sum of its proper divisors (342202246).

684404486 is a wasteful number, since it uses less digits than its factorization.

684404486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342202245.

The product of its (nonzero) digits is 589824, while the sum is 44.

The square root of 684404486 is about 26161.1254727315. The cubic root of 684404486 is about 881.2604552789.

The spelling of 684404486 in words is "six hundred eighty-four million, four hundred four thousand, four hundred eighty-six".