85274047 has 2 divisors, whose sum is σ = 85274048. Its totient is φ = 85274046.

The previous prime is 85274029. The next prime is 85274081. The reversal of 85274047 is 74047258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85274047 - 2¹¹ = 85271999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85273997 and 85274015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85274747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42637023 + 42637024.

It is an arithmetic number, because the mean of its divisors is an integer number (42637024).

Almost surely, 2^85274047 is an apocalyptic number.

85274047 is a deficient number, since it is larger than the sum of its proper divisors (1).

85274047 is an equidigital number, since it uses as much as digits as its factorization.

85274047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 85274047 is about 9234.3947825507. The cubic root of 85274047 is about 440.1549850024.

The spelling of 85274047 in words is "eighty-five million, two hundred seventy-four thousand, forty-seven".