85806650 has 72 divisors (see below), whose sum is σ = 177829020. Its totient is φ = 30661120.

The previous prime is 85806649. The next prime is 85806659. The reversal of 85806650 is 5660858.

It can be written as a sum of positive squares in 6 ways, for example, as 44448889 + 41357761 = 6667^2 + 6431^2 .

It is not an unprimeable number, because it can be changed into a prime (85806659) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1454321 + ... + 1454379.

Almost surely, 2^85806650 is an apocalyptic number.

85806650 is an abundant number, since it is smaller than the sum of its proper divisors (92022370).

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

85806650 is a wasteful number, since it uses less digits than its factorization.

85806650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 85806650 is about 9263.1878961835. The cubic root of 85806650 is about 441.0694542871.

The spelling of 85806650 in words is "eighty-five million, eight hundred six thousand, six hundred fifty".