906523 has 2 divisors, whose sum is σ = 906524. Its totient is φ = 906522.

The previous prime is 906517. The next prime is 906539. The reversal of 906523 is 325609.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 906523 - 2⁹ = 906011 is a prime.

It is not a weakly prime, because it can be changed into another prime (906023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453261 + 453262.

It is an arithmetic number, because the mean of its divisors is an integer number (453262).

2⁹⁰⁶⁵²³ is an apocalyptic number.

906523 is a deficient number, since it is larger than the sum of its proper divisors (1).

906523 is an equidigital number, since it uses as much as digits as its factorization.

906523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 906523 is about 952.1150140608. The cubic root of 906523 is about 96.7816322753.

The spelling of 906523 in words is "nine hundred six thousand, five hundred twenty-three".