85380830 has 64 divisors (see below), whose sum is σ = 168099840. Its totient is φ = 31135104.

The previous prime is 85380821. The next prime is 85380833. The reversal of 85380830 is 3808358.

It is a super-2 number, since 2×85380830² = 14579772262977800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85380833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 672227 + ... + 672353.

It is an arithmetic number, because the mean of its divisors is an integer number (2626560).

Almost surely, 2^85380830 is an apocalyptic number.

85380830 is a deficient number, since it is larger than the sum of its proper divisors (82719010).

85380830 is a wasteful number, since it uses less digits than its factorization.

85380830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 85380830 is about 9240.1747818967. The cubic root of 85380830 is about 440.3386339409.

The spelling of 85380830 in words is "eighty-five million, three hundred eighty thousand, eight hundred thirty".