85070801 has 2 divisors, whose sum is σ = 85070802. Its totient is φ = 85070800.

The previous prime is 85070779. The next prime is 85070837. The reversal of 85070801 is 10807058.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59830225 + 25240576 = 7735^2 + 5024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85070801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85070701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42535400 + 42535401.

It is an arithmetic number, because the mean of its divisors is an integer number (42535401).

Almost surely, 2^85070801 is an apocalyptic number.

It is an amenable number.

85070801 is a deficient number, since it is larger than the sum of its proper divisors (1).

85070801 is an equidigital number, since it uses as much as digits as its factorization.

85070801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 85070801 is about 9223.3833813845. The cubic root of 85070801 is about 439.8050117432.

Adding to 85070801 its reverse (10807058), we get a palindrome (95877859).

The spelling of 85070801 in words is "eighty-five million, seventy thousand, eight hundred one".