85366747 has 2 divisors, whose sum is σ = 85366748. Its totient is φ = 85366746.

The previous prime is 85366727. The next prime is 85366751. The reversal of 85366747 is 74766358.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85366747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85366697 and 85366706.

It is not a weakly prime, because it can be changed into another prime (85366727) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42683373 + 42683374.

It is an arithmetic number, because the mean of its divisors is an integer number (42683374).

Almost surely, 2^85366747 is an apocalyptic number.

85366747 is a deficient number, since it is larger than the sum of its proper divisors (1).

85366747 is an equidigital number, since it uses as much as digits as its factorization.

85366747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 46.

The square root of 85366747 is about 9239.4126977855. The cubic root of 85366747 is about 440.3144223001.

It can be divided in two parts, 853 and 66747, that added together give a square (67600 = 260²).

The spelling of 85366747 in words is "eighty-five million, three hundred sixty-six thousand, seven hundred forty-seven".