85717450 has 48 divisors (see below), whose sum is σ = 196237440. Its totient is φ = 27126720.

The previous prime is 85717441. The next prime is 85717453. The reversal of 85717450 is 5471758.

It is not an unprimeable number, because it can be changed into a prime (85717453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4870 + ... + 13969.

It is an arithmetic number, because the mean of its divisors is an integer number (4088280).

Almost surely, 2^85717450 is an apocalyptic number.

85717450 is an abundant number, since it is smaller than the sum of its proper divisors (110519990).

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

85717450 is a wasteful number, since it uses less digits than its factorization.

85717450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18871 (or 18866 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 85717450 is about 9258.3718871084. The cubic root of 85717450 is about 440.9165638981.

The spelling of 85717450 in words is "eighty-five million, seven hundred seventeen thousand, four hundred fifty".