85270770 has 96 divisors (see below), whose sum is σ = 246564864. Its totient is φ = 20304000.

The previous prime is 85270769. The next prime is 85270771. The reversal of 85270770 is 7707258.

It is an interprime number because it is at equal distance from previous prime (85270769) and next prime (85270771).

It is a super-2 number, since 2×85270770² = 14542208432785800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85270771) 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 47 ways as a sum of consecutive naturals, for example, 35095 + ... + 37445.

It is an arithmetic number, because the mean of its divisors is an integer number (2568384).

Almost surely, 2^85270770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85270770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123282432).

85270770 is an abundant number, since it is smaller than the sum of its proper divisors (161294094).

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

85270770 is a wasteful number, since it uses less digits than its factorization.

85270770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 36.

The square root of 85270770 is about 9234.2173463700. The cubic root of 85270770 is about 440.1493466853.

The spelling of 85270770 in words is "eighty-five million, two hundred seventy thousand, seven hundred seventy".