85674418 has 4 divisors (see below), whose sum is σ = 128511630. Its totient is φ = 42837208.

The previous prime is 85674409. The next prime is 85674451. The reversal of 85674418 is 81447658.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81447658 = 2 ⋅40723829.

It can be written as a sum of positive squares in only one way, i.e., 79156609 + 6517809 = 8897^2 + 2553^2 .

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, 21418603 + ... + 21418606.

Almost surely, 2^85674418 is an apocalyptic number.

85674418 is a deficient number, since it is larger than the sum of its proper divisors (42837212).

85674418 is a wasteful number, since it uses less digits than its factorization.

85674418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42837211.

The product of its digits is 215040, while the sum is 43.

The square root of 85674418 is about 9256.0476446483. The cubic root of 85674418 is about 440.8427683543.

The spelling of 85674418 in words is "eighty-five million, six hundred seventy-four thousand, four hundred eighteen".