85030989 has 8 divisors (see below), whose sum is σ = 113622432. Its totient is φ = 56563440.

The previous prime is 85030961. The next prime is 85030997. The reversal of 85030989 is 98903058.

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

It is not a de Polignac number, because 85030989 - 2⁸ = 85030733 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85030989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85030919) 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, 29359 + ... + 32124.

It is an arithmetic number, because the mean of its divisors is an integer number (14202804).

Almost surely, 2^85030989 is an apocalyptic number.

It is an amenable number.

85030989 is a deficient number, since it is larger than the sum of its proper divisors (28591443).

85030989 is a wasteful number, since it uses less digits than its factorization.

85030989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61947.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 85030989 is about 9221.2249186320. The cubic root of 85030989 is about 439.7363934118.

The spelling of 85030989 in words is "eighty-five million, thirty thousand, nine hundred eighty-nine".