85044737 has 2 divisors, whose sum is σ = 85044738. Its totient is φ = 85044736.

The previous prime is 85044719. The next prime is 85044763. The reversal of 85044737 is 73744058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70291456 + 14753281 = 8384^2 + 3841^2 .

It is a cyclic number.

It is not a de Polignac number, because 85044737 - 2¹⁴ = 85028353 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85044737.

It is not a weakly prime, because it can be changed into another prime (85044137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42522368 + 42522369.

It is an arithmetic number, because the mean of its divisors is an integer number (42522369).

Almost surely, 2^85044737 is an apocalyptic number.

It is an amenable number.

85044737 is a deficient number, since it is larger than the sum of its proper divisors (1).

85044737 is an equidigital number, since it uses as much as digits as its factorization.

85044737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 85044737 is about 9221.9703426112. The cubic root of 85044737 is about 439.7600913217.

The spelling of 85044737 in words is "eighty-five million, forty-four thousand, seven hundred thirty-seven".