85489397 has 4 divisors (see below), whose sum is σ = 97702176. Its totient is φ = 73276620.

The previous prime is 85489373. The next prime is 85489403. The reversal of 85489397 is 79398458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85489397 - 2⁶ = 85489333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85489097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6106379 + ... + 6106392.

It is an arithmetic number, because the mean of its divisors is an integer number (24425544).

Almost surely, 2^85489397 is an apocalyptic number.

It is an amenable number.

85489397 is a deficient number, since it is larger than the sum of its proper divisors (12212779).

85489397 is a wasteful number, since it uses less digits than its factorization.

85489397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12212778.

The product of its digits is 2177280, while the sum is 53.

The square root of 85489397 is about 9246.0476421009. The cubic root of 85489397 is about 440.5251941477.

The spelling of 85489397 in words is "eighty-five million, four hundred eighty-nine thousand, three hundred ninety-seven".