908904349 has 4 divisors (see below), whose sum is σ = 956741440. Its totient is φ = 861067260.

The previous prime is 908904323. The next prime is 908904361. The reversal of 908904349 is 943409809.

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, and also an emirpimes, since its reverse is a distinct semiprime: 943409809 = 43 ⋅21939763.

It is a cyclic number.

It is not a de Polignac number, because 908904349 - 2¹⁹ = 908380061 is a prime.

It is a super-2 number, since 2×908904349² = 1652214231262227602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 908904299 and 908904308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (908904449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23918517 + ... + 23918554.

It is an arithmetic number, because the mean of its divisors is an integer number (239185360).

Almost surely, 2^908904349 is an apocalyptic number.

It is an amenable number.

908904349 is a deficient number, since it is larger than the sum of its proper divisors (47837091).

908904349 is a wasteful number, since it uses less digits than its factorization.

908904349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47837090.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 908904349 is about 30148.0405499263. The cubic root of 908904349 is about 968.6630353346.

The spelling of 908904349 in words is "nine hundred eight million, nine hundred four thousand, three hundred forty-nine".