904242907 has 4 divisors (see below), whose sum is σ = 943557840. Its totient is φ = 864927976.

The previous prime is 904242901. The next prime is 904242929. The reversal of 904242907 is 709242409.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-904242907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (904242901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19657432 + ... + 19657477.

It is an arithmetic number, because the mean of its divisors is an integer number (235889460).

Almost surely, 2^904242907 is an apocalyptic number.

904242907 is a deficient number, since it is larger than the sum of its proper divisors (39314933).

904242907 is a wasteful number, since it uses less digits than its factorization.

904242907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39314932.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 904242907 is about 30070.6319687498. The cubic root of 904242907 is about 967.0042220396.

The spelling of 904242907 in words is "nine hundred four million, two hundred forty-two thousand, nine hundred seven".