85945394 has 4 divisors (see below), whose sum is σ = 128918094. Its totient is φ = 42972696.

The previous prime is 85945393. The next prime is 85945399. The reversal of 85945394 is 49354958.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83265625 + 2679769 = 9125^2 + 1637^2 .

It is a super-2 number, since 2×85945394² = 14773221499630472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85945393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21486347 + ... + 21486350.

Almost surely, 2^85945394 is an apocalyptic number.

85945394 is a deficient number, since it is larger than the sum of its proper divisors (42972700).

85945394 is a wasteful number, since it uses less digits than its factorization.

85945394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42972699.

The product of its digits is 777600, while the sum is 47.

The square root of 85945394 is about 9270.6738697896. The cubic root of 85945394 is about 441.3070535359.

The spelling of 85945394 in words is "eighty-five million, nine hundred forty-five thousand, three hundred ninety-four".