1684849097 has 8 divisors (see below), whose sum is σ = 1727631240. Its totient is φ = 1642556160.

The previous prime is 1684849093. The next prime is 1684849109. The reversal of 1684849097 is 7909484861.

It can be written as a sum of positive squares in 4 ways, for example, as 19882681 + 1664966416 = 4459^2 + 40804^2 .

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 1684849097 - 2² = 1684849093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1684849093) 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, 115322 + ... + 129107.

It is an arithmetic number, because the mean of its divisors is an integer number (215953905).

Almost surely, 2^1684849097 is an apocalyptic number.

It is an amenable number.

1684849097 is a deficient number, since it is larger than the sum of its proper divisors (42782143).

1684849097 is a wasteful number, since it uses less digits than its factorization.

1684849097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244603.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The square root of 1684849097 is about 41046.9133675116. The cubic root of 1684849097 is about 1189.9270479959.

The spelling of 1684849097 in words is "one billion, six hundred eighty-four million, eight hundred forty-nine thousand, ninety-seven".