85147020 has 72 divisors (see below), whose sum is σ = 295180704. Its totient is φ = 19461888.

The previous prime is 85147003. The next prime is 85147021. The reversal of 85147020 is 2074158.

It is not an unprimeable number, because it can be changed into a prime (85147021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32529 + ... + 35048.

It is an arithmetic number, because the mean of its divisors is an integer number (4099732).

Almost surely, 2^85147020 is an apocalyptic number.

It is an amenable number.

85147020 is an abundant number, since it is smaller than the sum of its proper divisors (210033684).

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

85147020 is a wasteful number, since it uses less digits than its factorization.

85147020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67599 (or 67594 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 85147020 is about 9227.5142915088. The cubic root of 85147020 is about 439.9363199853.

The spelling of 85147020 in words is "eighty-five million, one hundred forty-seven thousand, twenty".