85258389 has 8 divisors (see below), whose sum is σ = 114273792. Its totient is φ = 56540960.

The previous prime is 85258361. The next prime is 85258399. The reversal of 85258389 is 98385258.

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 85258389 - 2¹¹ = 85256341 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85258399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73824 + ... + 74969.

It is an arithmetic number, because the mean of its divisors is an integer number (14284224).

Almost surely, 2^85258389 is an apocalyptic number.

It is an amenable number.

85258389 is a deficient number, since it is larger than the sum of its proper divisors (29015403).

85258389 is a wasteful number, since it uses less digits than its factorization.

85258389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148987.

The product of its digits is 691200, while the sum is 48.

The square root of 85258389 is about 9233.5469349541. The cubic root of 85258389 is about 440.1280429692.

The spelling of 85258389 in words is "eighty-five million, two hundred fifty-eight thousand, three hundred eighty-nine".