85723650 has 48 divisors (see below), whose sum is σ = 236220000. Its totient is φ = 22859280.

The previous prime is 85723633. The next prime is 85723657. The reversal of 85723650 is 5632758.

85723650 is a `hidden beast` number, since 8 + 572 + 36 + 50 = 666.

It is not an unprimeable number, because it can be changed into a prime (85723657) 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, 30400 + ... + 33099.

It is an arithmetic number, because the mean of its divisors is an integer number (4921250).

Almost surely, 2^85723650 is an apocalyptic number.

85723650 is an abundant number, since it is smaller than the sum of its proper divisors (150496350).

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

85723650 is a wasteful number, since it uses less digits than its factorization.

85723650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63520 (or 63509 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 85723650 is about 9258.7067131430. The cubic root of 85723650 is about 440.9271942376.

The spelling of 85723650 in words is "eighty-five million, seven hundred twenty-three thousand, six hundred fifty".