85474385 has 8 divisors (see below), whose sum is σ = 108602856. Its totient is φ = 64357120.

The previous prime is 85474357. The next prime is 85474391. The reversal of 85474385 is 58347458.

It can be written as a sum of positive squares in 4 ways, for example, as 18905104 + 66569281 = 4348^2 + 8159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85474385 - 2¹⁰ = 85473361 is a prime.

It is a super-2 number, since 2×85474385² = 14611740982256450, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 502706 + ... + 502875.

It is an arithmetic number, because the mean of its divisors is an integer number (13575357).

Almost surely, 2^85474385 is an apocalyptic number.

85474385 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85474385 is a deficient number, since it is larger than the sum of its proper divisors (23128471).

85474385 is a wasteful number, since it uses less digits than its factorization.

85474385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005603.

The product of its digits is 537600, while the sum is 44.

The square root of 85474385 is about 9245.2358001297. The cubic root of 85474385 is about 440.4994071239.

The spelling of 85474385 in words is "eighty-five million, four hundred seventy-four thousand, three hundred eighty-five".