1684037345 has 8 divisors (see below), whose sum is σ = 2108707776. Its totient is φ = 1288654576.

The previous prime is 1684037297. The next prime is 1684037353. The reversal of 1684037345 is 5437304861.

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

It is a cyclic number.

It is not a de Polignac number, because 1684037345 - 2²⁴ = 1667260129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7321787 + ... + 7322016.

It is an arithmetic number, because the mean of its divisors is an integer number (263588472).

Almost surely, 2^1684037345 is an apocalyptic number.

It is an amenable number.

1684037345 is a deficient number, since it is larger than the sum of its proper divisors (424670431).

1684037345 is a wasteful number, since it uses less digits than its factorization.

1684037345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14643831.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 1684037345 is about 41037.0240758269. The cubic root of 1684037345 is about 1189.7359169661.

The spelling of 1684037345 in words is "one billion, six hundred eighty-four million, thirty-seven thousand, three hundred forty-five".