85099623 has 24 divisors (see below), whose sum is σ = 135070848. Its totient is φ = 47493936.

The previous prime is 85099621. The next prime is 85099633. The reversal of 85099623 is 32699058.

It is not a de Polignac number, because 85099623 - 2¹ = 85099621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85099621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 411 + ... + 13052.

It is an arithmetic number, because the mean of its divisors is an integer number (5627952).

Almost surely, 2^85099623 is an apocalyptic number.

85099623 is a deficient number, since it is larger than the sum of its proper divisors (49971225).

85099623 is a wasteful number, since it uses less digits than its factorization.

85099623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13523 (or 13516 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 85099623 is about 9224.9456908970. The cubic root of 85099623 is about 439.8546748028.

The spelling of 85099623 in words is "eighty-five million, ninety-nine thousand, six hundred twenty-three".