85030770 has 128 divisors (see below), whose sum is σ = 246343680. Its totient is φ = 18529280.

The previous prime is 85030739. The next prime is 85030801. The reversal of 85030770 is 7703058.

It is an interprime number because it is at equal distance from previous prime (85030739) and next prime (85030801).

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128701 + ... + 129359.

It is an arithmetic number, because the mean of its divisors is an integer number (1924560).

Almost surely, 2^85030770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85030770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123171840).

85030770 is an abundant number, since it is smaller than the sum of its proper divisors (161312910).

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

85030770 is a wasteful number, since it uses less digits than its factorization.

85030770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 85030770 is about 9221.2130438462. The cubic root of 85030770 is about 439.7360158932.

The spelling of 85030770 in words is "eighty-five million, thirty thousand, seven hundred seventy".