85447152 has 120 divisors (see below), whose sum is σ = 276283904. Its totient is φ = 24147072.

The previous prime is 85447147. The next prime is 85447189. The reversal of 85447152 is 25174458.

It is a super-2 number, since 2×85447152² = 14602431569822208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103413 + ... + 104235.

Almost surely, 2^85447152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85447152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138141952).

85447152 is an abundant number, since it is smaller than the sum of its proper divisors (190836752).

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

85447152 is a wasteful number, since it uses less digits than its factorization.

85447152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 938 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 85447152 is about 9243.7628701736. The cubic root of 85447152 is about 440.4526196386.

The spelling of 85447152 in words is "eighty-five million, four hundred forty-seven thousand, one hundred fifty-two".