85372811 has 2 divisors, whose sum is σ = 85372812. Its totient is φ = 85372810.

The previous prime is 85372789. The next prime is 85372841. The reversal of 85372811 is 11827358.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85372811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85372841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42686405 + 42686406.

It is an arithmetic number, because the mean of its divisors is an integer number (42686406).

Almost surely, 2^85372811 is an apocalyptic number.

85372811 is a deficient number, since it is larger than the sum of its proper divisors (1).

85372811 is an equidigital number, since it uses as much as digits as its factorization.

85372811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 35.

The square root of 85372811 is about 9239.7408513443. The cubic root of 85372811 is about 440.3248479187.

The spelling of 85372811 in words is "eighty-five million, three hundred seventy-two thousand, eight hundred eleven".