684174041 has 4 divisors (see below), whose sum is σ = 687416784. Its totient is φ = 680931300.

The previous prime is 684174013. The next prime is 684174047. The reversal of 684174041 is 140471486.

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, and also an emirpimes, since its reverse is a distinct semiprime: 140471486 = 2 ⋅70235743.

It is a cyclic number.

It is not a de Polignac number, because 684174041 - 2²² = 679979737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 684173992 and 684174010.

It is not an unprimeable number, because it can be changed into a prime (684174047) 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, 1621055 + ... + 1621476.

It is an arithmetic number, because the mean of its divisors is an integer number (171854196).

Almost surely, 2^684174041 is an apocalyptic number.

It is an amenable number.

684174041 is a deficient number, since it is larger than the sum of its proper divisors (3242743).

684174041 is a wasteful number, since it uses less digits than its factorization.

684174041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242742.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 684174041 is about 26156.7207615940. The cubic root of 684174041 is about 881.1615347978.

The spelling of 684174041 in words is "six hundred eighty-four million, one hundred seventy-four thousand, forty-one".