5821394 has 4 divisors (see below), whose sum is σ = 8732094. Its totient is φ = 2910696.

The previous prime is 5821393. The next prime is 5821423. The reversal of 5821394 is 4931285.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4931285 = 5 ⋅986257.

It can be written as a sum of positive squares in only one way, i.e., 5313025 + 508369 = 2305^2 + 713^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5821394.

It is not an unprimeable number, because it can be changed into a prime (5821393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1455347 + ... + 1455350.

Almost surely, 2^5821394 is an apocalyptic number.

5821394 is a deficient number, since it is larger than the sum of its proper divisors (2910700).

5821394 is a wasteful number, since it uses less digits than its factorization.

5821394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910699.

The product of its digits is 8640, while the sum is 32.

The square root of 5821394 is about 2412.7565148601. The cubic root of 5821394 is about 179.8908185616.

The spelling of 5821394 in words is "five million, eight hundred twenty-one thousand, three hundred ninety-four".