904671329 has 2 divisors, whose sum is σ = 904671330. Its totient is φ = 904671328.

The previous prime is 904671307. The next prime is 904671331. The reversal of 904671329 is 923176409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 898800400 + 5870929 = 29980^2 + 2423^2 .

It is an emirp because it is prime and its reverse (923176409) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-904671329 is a prime.

Together with 904671331, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (904671359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452335664 + 452335665.

It is an arithmetic number, because the mean of its divisors is an integer number (452335665).

Almost surely, 2^904671329 is an apocalyptic number.

It is an amenable number.

904671329 is a deficient number, since it is larger than the sum of its proper divisors (1).

904671329 is an equidigital number, since it uses as much as digits as its factorization.

904671329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 904671329 is about 30077.7547200585. The cubic root of 904671329 is about 967.1569171722.

The spelling of 904671329 in words is "nine hundred four million, six hundred seventy-one thousand, three hundred twenty-nine".