684264494 has 8 divisors (see below), whose sum is σ = 1035480240. Its totient is φ = 339104416.

The previous prime is 684264491. The next prime is 684264509. The reversal of 684264494 is 494462486.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684264491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1513634 + ... + 1514085.

It is an arithmetic number, because the mean of its divisors is an integer number (129435030).

Almost surely, 2^684264494 is an apocalyptic number.

684264494 is a deficient number, since it is larger than the sum of its proper divisors (351215746).

684264494 is a wasteful number, since it uses less digits than its factorization.

684264494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027834.

The product of its digits is 1327104, while the sum is 47.

The square root of 684264494 is about 26158.4497629351. The cubic root of 684264494 is about 881.2003651672.

The spelling of 684264494 in words is "six hundred eighty-four million, two hundred sixty-four thousand, four hundred ninety-four".