85074389 has 8 divisors (see below), whose sum is σ = 87442560. Its totient is φ = 82738656.

The previous prime is 85074383. The next prime is 85074403. The reversal of 85074389 is 98347058.

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

It is a cyclic number.

It is not a de Polignac number, because 85074389 - 2⁸ = 85074133 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85074383) 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 in 7 ways as a sum of consecutive naturals, for example, 2744 + ... + 13329.

It is an arithmetic number, because the mean of its divisors is an integer number (10930320).

Almost surely, 2^85074389 is an apocalyptic number.

It is an amenable number.

85074389 is a deficient number, since it is larger than the sum of its proper divisors (2368171).

85074389 is a wasteful number, since it uses less digits than its factorization.

85074389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16219.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 85074389 is about 9223.5778849642. The cubic root of 85074389 is about 439.8111948212.

The spelling of 85074389 in words is "eighty-five million, seventy-four thousand, three hundred eighty-nine".