85247760 has 160 divisors (see below), whose sum is σ = 288731520. Its totient is φ = 20680704.

The previous prime is 85247759. The next prime is 85247777. The reversal of 85247760 is 6774258.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277527 + ... + 277833.

It is an arithmetic number, because the mean of its divisors is an integer number (1804572).

Almost surely, 2^85247760 is an apocalyptic number.

85247760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85247760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144365760).

85247760 is an abundant number, since it is smaller than the sum of its proper divisors (203483760).

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

85247760 is a wasteful number, since it uses less digits than its factorization.

85247760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 85247760 is about 9232.9713527120. The cubic root of 85247760 is about 440.1097522358.

The spelling of 85247760 in words is "eighty-five million, two hundred forty-seven thousand, seven hundred sixty".