85789699 has 2 divisors, whose sum is σ = 85789700. Its totient is φ = 85789698.

The previous prime is 85789663. The next prime is 85789721. The reversal of 85789699 is 99698758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85789699 - 2²³ = 77401091 is a prime.

It is not a weakly prime, because it can be changed into another prime (85789619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42894849 + 42894850.

It is an arithmetic number, because the mean of its divisors is an integer number (42894850).

Almost surely, 2^85789699 is an apocalyptic number.

85789699 is a deficient number, since it is larger than the sum of its proper divisors (1).

85789699 is an equidigital number, since it uses as much as digits as its factorization.

85789699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 61.

The square root of 85789699 is about 9262.2728852048. The cubic root of 85789699 is about 441.0404081285.

The spelling of 85789699 in words is "eighty-five million, seven hundred eighty-nine thousand, six hundred ninety-nine".