85326649 has 2 divisors, whose sum is σ = 85326650. Its totient is φ = 85326648.

The previous prime is 85326643. The next prime is 85326653. The reversal of 85326649 is 94662358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79780624 + 5546025 = 8932^2 + 2355^2 .

It is a cyclic number.

It is not a de Polignac number, because 85326649 - 2¹¹ = 85324601 is a prime.

It is not a weakly prime, because it can be changed into another prime (85326643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42663324 + 42663325.

It is an arithmetic number, because the mean of its divisors is an integer number (42663325).

Almost surely, 2^85326649 is an apocalyptic number.

It is an amenable number.

85326649 is a deficient number, since it is larger than the sum of its proper divisors (1).

85326649 is an equidigital number, since it uses as much as digits as its factorization.

85326649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The square root of 85326649 is about 9237.2424997940. The cubic root of 85326649 is about 440.2454708116.

The spelling of 85326649 in words is "eighty-five million, three hundred twenty-six thousand, six hundred forty-nine".