684297701 has 4 divisors (see below), whose sum is σ = 690941472. Its totient is φ = 677653932.

The previous prime is 684297671. The next prime is 684297737. The reversal of 684297701 is 107792486.

684297701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-684297701 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 (684227701) 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, 3321731 + ... + 3321936.

It is an arithmetic number, because the mean of its divisors is an integer number (172735368).

Almost surely, 2^684297701 is an apocalyptic number.

It is an amenable number.

684297701 is a deficient number, since it is larger than the sum of its proper divisors (6643771).

684297701 is a wasteful number, since it uses less digits than its factorization.

684297701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6643770.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 684297701 is about 26159.0844832154. The cubic root of 684297701 is about 881.2146196684.

The spelling of 684297701 in words is "six hundred eighty-four million, two hundred ninety-seven thousand, seven hundred one".