85558749 has 8 divisors (see below), whose sum is σ = 114408480. Its totient is φ = 56874096.

The previous prime is 85558723. The next prime is 85558771. The reversal of 85558749 is 94785558.

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

It is not a de Polignac number, because 85558749 - 2⁵ = 85558717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85558789) 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, 40054 + ... + 42135.

It is an arithmetic number, because the mean of its divisors is an integer number (14301060).

Almost surely, 2^85558749 is an apocalyptic number.

It is an amenable number.

85558749 is a deficient number, since it is larger than the sum of its proper divisors (28849731).

85558749 is a wasteful number, since it uses less digits than its factorization.

85558749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82539.

The product of its digits is 2016000, while the sum is 51.

The square root of 85558749 is about 9249.7972410210. The cubic root of 85558749 is about 440.6442851174.

The spelling of 85558749 in words is "eighty-five million, five hundred fifty-eight thousand, seven hundred forty-nine".