85146623 has 2 divisors, whose sum is σ = 85146624. Its totient is φ = 85146622.

The previous prime is 85146613. The next prime is 85146631. The reversal of 85146623 is 32664158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85146623 - 2⁶ = 85146559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85146613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42573311 + 42573312.

It is an arithmetic number, because the mean of its divisors is an integer number (42573312).

Almost surely, 2^85146623 is an apocalyptic number.

85146623 is a deficient number, since it is larger than the sum of its proper divisors (1).

85146623 is an equidigital number, since it uses as much as digits as its factorization.

85146623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 85146623 is about 9227.4927797317. The cubic root of 85146623 is about 439.9356362464.

It can be divided in two parts, 851 and 46623, that added together give a palindrome (47474).

The spelling of 85146623 in words is "eighty-five million, one hundred forty-six thousand, six hundred twenty-three".