85186749 has 8 divisors (see below), whose sum is σ = 113807520. Its totient is φ = 56678576.

The previous prime is 85186663. The next prime is 85186753. The reversal of 85186749 is 94768158.

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 85186749 - 2⁹ = 85186237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85186698 and 85186707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85186769) 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, 26367 + ... + 29420.

It is an arithmetic number, because the mean of its divisors is an integer number (14225940).

Almost surely, 2^85186749 is an apocalyptic number.

It is an amenable number.

85186749 is a deficient number, since it is larger than the sum of its proper divisors (28620771).

85186749 is a wasteful number, since it uses less digits than its factorization.

85186749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56299.

The product of its digits is 483840, while the sum is 48.

The square root of 85186749 is about 9229.6667870514. Note that the first 3 decimals coincide. The cubic root of 85186749 is about 440.0047330758.

The spelling of 85186749 in words is "eighty-five million, one hundred eighty-six thousand, seven hundred forty-nine".