908224231 has 2 divisors, whose sum is σ = 908224232. Its totient is φ = 908224230.

The previous prime is 908224189. The next prime is 908224241. The reversal of 908224231 is 132422809.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 908224231 - 2¹³ = 908216039 is a prime.

It is a super-2 number, since 2×908224231² = 1649742507551082722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 908224193 and 908224202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (908224241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454112115 + 454112116.

It is an arithmetic number, because the mean of its divisors is an integer number (454112116).

Almost surely, 2^908224231 is an apocalyptic number.

908224231 is a deficient number, since it is larger than the sum of its proper divisors (1).

908224231 is an equidigital number, since it uses as much as digits as its factorization.

908224231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 908224231 is about 30136.7588005081. The cubic root of 908224231 is about 968.4213635680.

The spelling of 908224231 in words is "nine hundred eight million, two hundred twenty-four thousand, two hundred thirty-one".