908623 has 2 divisors, whose sum is σ = 908624. Its totient is φ = 908622.

The previous prime is 908617. The next prime is 908627. The reversal of 908623 is 326809.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 908623 - 2⁵ = 908591 is a prime.

It is a super-2 number, since 2×908623² = 1651191512258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 908591 and 908600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (908627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454311 + 454312.

It is an arithmetic number, because the mean of its divisors is an integer number (454312).

2⁹⁰⁸⁶²³ is an apocalyptic number.

908623 is a deficient number, since it is larger than the sum of its proper divisors (1).

908623 is an equidigital number, since it uses as much as digits as its factorization.

908623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 908623 is about 953.2171840667. The cubic root of 908623 is about 96.8563075971.

The spelling of 908623 in words is "nine hundred eight thousand, six hundred twenty-three".