2173794858 has 12 divisors (see below), whose sum is σ = 4709888898. Its totient is φ = 724598280.

The previous prime is 2173794853. The next prime is 2173794907. The reversal of 2173794858 is 8584973712.

It is a happy number.

2173794858 is a `hidden beast` number, since 21 + 73 + 79 + 485 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1289743569 + 884051289 = 35913^2 + 29733^2 .

It is not an unprimeable number, because it can be changed into a prime (2173794853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60383173 + ... + 60383208.

Almost surely, 2^2173794858 is an apocalyptic number.

2173794858 is an abundant number, since it is smaller than the sum of its proper divisors (2536094040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2173794858 is a wasteful number, since it uses less digits than its factorization.

2173794858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120766389 (or 120766386 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 2173794858 is about 46623.9729967321. The cubic root of 2173794858 is about 1295.4068394715.

The spelling of 2173794858 in words is "two billion, one hundred seventy-three million, seven hundred ninety-four thousand, eight hundred fifty-eight".