85229623 has 2 divisors, whose sum is σ = 85229624. Its totient is φ = 85229622.

The previous prime is 85229591. The next prime is 85229701. The reversal of 85229623 is 32692258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85229623 - 2⁵ = 85229591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85229423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42614811 + 42614812.

It is an arithmetic number, because the mean of its divisors is an integer number (42614812).

Almost surely, 2^85229623 is an apocalyptic number.

85229623 is a deficient number, since it is larger than the sum of its proper divisors (1).

85229623 is an equidigital number, since it uses as much as digits as its factorization.

85229623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 85229623 is about 9231.9891139451. The cubic root of 85229623 is about 440.0785379777.

It can be divided in two parts, 8522 and 9623, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 85229623 in words is "eighty-five million, two hundred twenty-nine thousand, six hundred twenty-three".