908413921 has 16 divisors (see below), whose sum is σ = 1015882560. Its totient is φ = 807252480.

The previous prime is 908413907. The next prime is 908413927. The reversal of 908413921 is 129314809.

908413921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 908413921 - 2¹¹ = 908411873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (908413927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94581 + ... + 103741.

It is an arithmetic number, because the mean of its divisors is an integer number (63492660).

Almost surely, 2^908413921 is an apocalyptic number.

It is an amenable number.

908413921 is a deficient number, since it is larger than the sum of its proper divisors (107468639).

908413921 is a wasteful number, since it uses less digits than its factorization.

908413921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9504.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 908413921 is about 30139.9057895011. The cubic root of 908413921 is about 968.4887797613.

It can be divided in two parts, 9084 and 13921, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 908413921 in words is "nine hundred eight million, four hundred thirteen thousand, nine hundred twenty-one".