904396939971 has 32 divisors (see below), whose sum is σ = 1404703157760. Its totient is φ = 506840765184.

The previous prime is 904396939907. The next prime is 904396939973. The reversal of 904396939971 is 179939693409.

It is not a de Polignac number, because 904396939971 - 2⁶ = 904396939907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 904396939896 and 904396939905.

It is not an unprimeable number, because it can be changed into a prime (904396939973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2588160 + ... + 2916738.

It is an arithmetic number, because the mean of its divisors is an integer number (43896973680).

Almost surely, 2^904396939971 is an apocalyptic number.

904396939971 is a deficient number, since it is larger than the sum of its proper divisors (500306217789).

904396939971 is a wasteful number, since it uses less digits than its factorization.

904396939971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331115.

The product of its (nonzero) digits is 89282088, while the sum is 69.

The spelling of 904396939971 in words is "nine hundred four billion, three hundred ninety-six million, nine hundred thirty-nine thousand, nine hundred seventy-one".