85404082 has 4 divisors (see below), whose sum is σ = 128106126. Its totient is φ = 42702040.

The previous prime is 85404061. The next prime is 85404091. The reversal of 85404082 is 28040458.

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., 85211361 + 192721 = 9231^2 + 439^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21351019 + ... + 21351022.

Almost surely, 2^85404082 is an apocalyptic number.

85404082 is a deficient number, since it is larger than the sum of its proper divisors (42702044).

85404082 is a wasteful number, since it uses less digits than its factorization.

85404082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42702043.

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 85404082 is about 9241.4328975544. The cubic root of 85404082 is about 440.3786031963.

The spelling of 85404082 in words is "eighty-five million, four hundred four thousand, eighty-two".