85923030 has 48 divisors (see below), whose sum is σ = 211258800. Its totient is φ = 22365504.

The previous prime is 85923029. The next prime is 85923037. The reversal of 85923030 is 3032958.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85923037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54696 + ... + 56244.

It is an arithmetic number, because the mean of its divisors is an integer number (4401225).

Almost surely, 2^85923030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85923030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105629400).

85923030 is an abundant number, since it is smaller than the sum of its proper divisors (125335770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85923030 is a wasteful number, since it uses less digits than its factorization.

85923030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 85923030 is about 9269.4676222532. The cubic root of 85923030 is about 441.2687724574.

Adding to 85923030 its reverse (3032958), we get a palindrome (88955988).

The spelling of 85923030 in words is "eighty-five million, nine hundred twenty-three thousand, thirty".