684011497 has 8 divisors (see below), whose sum is σ = 760390400. Its totient is φ = 611027280.

The previous prime is 684011479. The next prime is 684011543. The reversal of 684011497 is 794110486.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-684011497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (684011417) 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, 848247 + ... + 849052.

It is an arithmetic number, because the mean of its divisors is an integer number (95048800).

Almost surely, 2^684011497 is an apocalyptic number.

It is an amenable number.

684011497 is a deficient number, since it is larger than the sum of its proper divisors (76378903).

684011497 is a wasteful number, since it uses less digits than its factorization.

684011497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697343.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 684011497 is about 26153.6134597115. The cubic root of 684011497 is about 881.0917480399.

The spelling of 684011497 in words is "six hundred eighty-four million, eleven thousand, four hundred ninety-seven".