904375845 has 12 divisors (see below), whose sum is σ = 1567584876. Its totient is φ = 482333760.

The previous prime is 904375811. The next prime is 904375861. The reversal of 904375845 is 548573409.

It can be written as a sum of positive squares in 2 ways, for example, as 547279236 + 357096609 = 23394^2 + 18897^2 .

It is not a de Polignac number, because 904375845 - 2¹¹ = 904373797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 20097241 = 904375845 / (9 + 0 + 4 + 3 + 7 + 5 + 8 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 904375845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10048576 + ... + 10048665.

It is an arithmetic number, because the mean of its divisors is an integer number (130632073).

Almost surely, 2^904375845 is an apocalyptic number.

It is an amenable number.

904375845 is a deficient number, since it is larger than the sum of its proper divisors (663209031).

904375845 is a wasteful number, since it uses less digits than its factorization.

904375845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20097252 (or 20097249 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 904375845 is about 30072.8423166152. The cubic root of 904375845 is about 967.0516080193.

The spelling of 904375845 in words is "nine hundred four million, three hundred seventy-five thousand, eight hundred forty-five".