904147973 has 4 divisors (see below), whose sum is σ = 904282368. Its totient is φ = 904013580.

The previous prime is 904147957. The next prime is 904147987. The reversal of 904147973 is 379741409.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 904147973 - 2⁴ = 904147957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904147903) 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 3 ways as a sum of consecutive naturals, for example, 56543 + ... + 70748.

It is an arithmetic number, because the mean of its divisors is an integer number (226070592).

Almost surely, 2^904147973 is an apocalyptic number.

It is an amenable number.

904147973 is a deficient number, since it is larger than the sum of its proper divisors (134395).

904147973 is a wasteful number, since it uses less digits than its factorization.

904147973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134394.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 904147973 is about 30069.0534104418. The cubic root of 904147973 is about 966.9703798087.

It can be divided in two parts, 904 and 147973, that added together give a cube (148877 = 53³).

The spelling of 904147973 in words is "nine hundred four million, one hundred forty-seven thousand, nine hundred seventy-three".