85667747 has 8 divisors (see below), whose sum is σ = 94031040. Its totient is φ = 77400360.

The previous prime is 85667719. The next prime is 85667797. The reversal of 85667747 is 74776658.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85667747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85667695 and 85667704.

It is not an unprimeable number, because it can be changed into a prime (85667717) 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, 22097 + ... + 25682.

It is an arithmetic number, because the mean of its divisors is an integer number (11753880).

Almost surely, 2^85667747 is an apocalyptic number.

85667747 is a deficient number, since it is larger than the sum of its proper divisors (8363293).

85667747 is a wasteful number, since it uses less digits than its factorization.

85667747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47953.

The product of its digits is 1975680, while the sum is 50.

The square root of 85667747 is about 9255.6872786412. The cubic root of 85667747 is about 440.8313260494.

The spelling of 85667747 in words is "eighty-five million, six hundred sixty-seven thousand, seven hundred forty-seven".