85664354 has 4 divisors (see below), whose sum is σ = 128496534. Its totient is φ = 42832176.

The previous prime is 85664353. The next prime is 85664357. The reversal of 85664354 is 45346658.

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., 85063729 + 600625 = 9223^2 + 775^2 .

It is not an unprimeable number, because it can be changed into a prime (85664353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21416087 + ... + 21416090.

Almost surely, 2^85664354 is an apocalyptic number.

85664354 is a deficient number, since it is larger than the sum of its proper divisors (42832180).

85664354 is a wasteful number, since it uses less digits than its factorization.

85664354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42832179.

The product of its digits is 345600, while the sum is 41.

The square root of 85664354 is about 9255.5039841167. The cubic root of 85664354 is about 440.8255060433.

The spelling of 85664354 in words is "eighty-five million, six hundred sixty-four thousand, three hundred fifty-four".