684084790 has 8 divisors (see below), whose sum is σ = 1231352640. Its totient is φ = 273633912.

The previous prime is 684084769. The next prime is 684084803. The reversal of 684084790 is 97480486.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 684084790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34204230 + ... + 34204249.

It is an arithmetic number, because the mean of its divisors is an integer number (153919080).

Almost surely, 2^684084790 is an apocalyptic number.

684084790 is a deficient number, since it is larger than the sum of its proper divisors (547267850).

684084790 is a wasteful number, since it uses less digits than its factorization.

684084790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68408486.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 684084790 is about 26155.0146243507. The cubic root of 684084790 is about 881.1232170778.

The spelling of 684084790 in words is "six hundred eighty-four million, eighty-four thousand, seven hundred ninety".