904196243 has 4 divisors (see below), whose sum is σ = 904448088. Its totient is φ = 903944400.

The previous prime is 904196239. The next prime is 904196257. The reversal of 904196243 is 342691409.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 904196243 - 2² = 904196239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 904196197 and 904196206.

It is not an unprimeable number, because it can be changed into a prime (904196213) 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, 120458 + ... + 127743.

It is an arithmetic number, because the mean of its divisors is an integer number (226112022).

Almost surely, 2^904196243 is an apocalyptic number.

904196243 is a deficient number, since it is larger than the sum of its proper divisors (251845).

904196243 is a wasteful number, since it uses less digits than its factorization.

904196243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251844.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 904196243 is about 30069.8560521995. The cubic root of 904196243 is about 966.9875874749.

The spelling of 904196243 in words is "nine hundred four million, one hundred ninety-six thousand, two hundred forty-three".