85445972 has 12 divisors (see below), whose sum is σ = 150903060. Its totient is φ = 42330816.

The previous prime is 85445959. The next prime is 85446001. The reversal of 85445972 is 27954458.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48916036 + 36529936 = 6994^2 + 6044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97553 + ... + 98424.

It is an arithmetic number, because the mean of its divisors is an integer number (12575255).

Almost surely, 2^85445972 is an apocalyptic number.

It is an amenable number.

85445972 is a deficient number, since it is larger than the sum of its proper divisors (65457088).

85445972 is a wasteful number, since it uses less digits than its factorization.

85445972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196090 (or 196088 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 85445972 is about 9243.6990431320. The cubic root of 85445972 is about 440.4505921223.

The spelling of 85445972 in words is "eighty-five million, four hundred forty-five thousand, nine hundred seventy-two".