85749245 has 8 divisors (see below), whose sum is σ = 105409080. Its totient is φ = 66926080.

The previous prime is 85749229. The next prime is 85749253. The reversal of 85749245 is 54294758.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20164 + 85729081 = 142^2 + 9259^2 .

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

It is not a de Polignac number, because 85749245 - 2⁴ = 85749229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85749196 and 85749205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208940 + ... + 209349.

It is an arithmetic number, because the mean of its divisors is an integer number (13176135).

Almost surely, 2^85749245 is an apocalyptic number.

It is an amenable number.

85749245 is a deficient number, since it is larger than the sum of its proper divisors (19659835).

85749245 is a wasteful number, since it uses less digits than its factorization.

85749245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418335.

The product of its digits is 403200, while the sum is 44.

The square root of 85749245 is about 9260.0888224682. The cubic root of 85749245 is about 440.9710732548.

The spelling of 85749245 in words is "eighty-five million, seven hundred forty-nine thousand, two hundred forty-five".