85622783 has 2 divisors, whose sum is σ = 85622784. Its totient is φ = 85622782.

The previous prime is 85622777. The next prime is 85622809. The reversal of 85622783 is 38722658.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85622783 - 2¹⁴ = 85606399 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85622783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85622743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42811391 + 42811392.

It is an arithmetic number, because the mean of its divisors is an integer number (42811392).

Almost surely, 2^85622783 is an apocalyptic number.

85622783 is a deficient number, since it is larger than the sum of its proper divisors (1).

85622783 is an equidigital number, since it uses as much as digits as its factorization.

85622783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 41.

The square root of 85622783 is about 9253.2579667920. The cubic root of 85622783 is about 440.7541869108.

The spelling of 85622783 in words is "eighty-five million, six hundred twenty-two thousand, seven hundred eighty-three".