85509722 has 16 divisors (see below), whose sum is σ = 134291520. Its totient is φ = 40758432.

The previous prime is 85509713. The next prime is 85509751. The reversal of 85509722 is 22790558.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11429 + ... + 17367.

It is an arithmetic number, because the mean of its divisors is an integer number (8393220).

Almost surely, 2^85509722 is an apocalyptic number.

85509722 is a deficient number, since it is larger than the sum of its proper divisors (48781798).

85509722 is a wasteful number, since it uses less digits than its factorization.

85509722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 85509722 is about 9247.1466950622. The cubic root of 85509722 is about 440.5601028241.

The spelling of 85509722 in words is "eighty-five million, five hundred nine thousand, seven hundred twenty-two".