1684374107 has 4 divisors (see below), whose sum is σ = 1813941360. Its totient is φ = 1554806856.

The previous prime is 1684374103. The next prime is 1684374137. The reversal of 1684374107 is 7014734861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7014734861 = 29 ⋅241887409.

It is a cyclic number.

It is not a de Polignac number, because 1684374107 - 2² = 1684374103 is a prime.

It is a super-2 number, since 2×1684374107² = 5674232264664094898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1684374101) 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, 64783607 + ... + 64783632.

It is an arithmetic number, because the mean of its divisors is an integer number (453485340).

Almost surely, 2^1684374107 is an apocalyptic number.

1684374107 is a deficient number, since it is larger than the sum of its proper divisors (129567253).

1684374107 is a wasteful number, since it uses less digits than its factorization.

1684374107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129567252.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 1684374107 is about 41041.1270191256. The cubic root of 1684374107 is about 1189.8152167006.

The spelling of 1684374107 in words is "one billion, six hundred eighty-four million, three hundred seventy-four thousand, one hundred seven".