85127649 has 4 divisors (see below), whose sum is σ = 113503536. Its totient is φ = 56751764.

The previous prime is 85127633. The next prime is 85127663. The reversal of 85127649 is 94672158.

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 85127649 - 2⁴ = 85127633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85127649.

It is not an unprimeable number, because it can be changed into a prime (85127689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14187939 + ... + 14187944.

It is an arithmetic number, because the mean of its divisors is an integer number (28375884).

Almost surely, 2^85127649 is an apocalyptic number.

It is an amenable number.

85127649 is a deficient number, since it is larger than the sum of its proper divisors (28375887).

85127649 is a wasteful number, since it uses less digits than its factorization.

85127649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28375886.

The product of its digits is 120960, while the sum is 42.

The square root of 85127649 is about 9226.4645991842. The cubic root of 85127649 is about 439.9029555262.

It can be divided in two parts, 8512 and 7649, that added together give a palindrome (16161).

The spelling of 85127649 in words is "eighty-five million, one hundred twenty-seven thousand, six hundred forty-nine".