896509 has 2 divisors, whose sum is σ = 896510. Its totient is φ = 896508.

The previous prime is 896491. The next prime is 896521. The reversal of 896509 is 905698.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 532900 + 363609 = 730^2 + 603^2 .

It is a cyclic number.

It is not a de Polignac number, because 896509 - 2⁷ = 896381 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (896549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448254 + 448255.

It is an arithmetic number, because the mean of its divisors is an integer number (448255).

2⁸⁹⁶⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

896509 is a deficient number, since it is larger than the sum of its proper divisors (1).

896509 is an equidigital number, since it uses as much as digits as its factorization.

896509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 896509 is about 946.8415918199. The cubic root of 896509 is about 96.4239425043.

The spelling of 896509 in words is "eight hundred ninety-six thousand, five hundred nine".