85010447 has 2 divisors, whose sum is σ = 85010448. Its totient is φ = 85010446.

The previous prime is 85010417. The next prime is 85010473. The reversal of 85010447 is 74401058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85010447 - 2¹² = 85006351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85010407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42505223 + 42505224.

It is an arithmetic number, because the mean of its divisors is an integer number (42505224).

Almost surely, 2^85010447 is an apocalyptic number.

85010447 is a deficient number, since it is larger than the sum of its proper divisors (1).

85010447 is an equidigital number, since it uses as much as digits as its factorization.

85010447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 85010447 is about 9220.1110080085. Note that the first 3 decimals coincide. The cubic root of 85010447 is about 439.7009796856.

The spelling of 85010447 in words is "eighty-five million, ten thousand, four hundred forty-seven".