85751737 has 2 divisors, whose sum is σ = 85751738. Its totient is φ = 85751736.

The previous prime is 85751707. The next prime is 85751773. The reversal of 85751737 is 73715758.

Together with next prime (85751773) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65221776 + 20529961 = 8076^2 + 4531^2 .

It is a cyclic number.

It is not a de Polignac number, because 85751737 - 2⁷ = 85751609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85751693 and 85751702.

It is not a weakly prime, because it can be changed into another prime (85751707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42875868 + 42875869.

It is an arithmetic number, because the mean of its divisors is an integer number (42875869).

Almost surely, 2^85751737 is an apocalyptic number.

It is an amenable number.

85751737 is a deficient number, since it is larger than the sum of its proper divisors (1).

85751737 is an equidigital number, since it uses as much as digits as its factorization.

85751737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 205800, while the sum is 43.

The square root of 85751737 is about 9260.2233774353. The cubic root of 85751737 is about 440.9753449708.

The spelling of 85751737 in words is "eighty-five million, seven hundred fifty-one thousand, seven hundred thirty-seven".