85964687 has 2 divisors, whose sum is σ = 85964688. Its totient is φ = 85964686.

The previous prime is 85964663. The next prime is 85964761. The reversal of 85964687 is 78646958.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85964687 - 2¹⁸ = 85702543 is a prime.

It is a super-2 number, since 2×85964687² = 14779854822015938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85964647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42982343 + 42982344.

It is an arithmetic number, because the mean of its divisors is an integer number (42982344).

Almost surely, 2^85964687 is an apocalyptic number.

85964687 is a deficient number, since it is larger than the sum of its proper divisors (1).

85964687 is an equidigital number, since it uses as much as digits as its factorization.

85964687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 53.

The square root of 85964687 is about 9271.7143506473. The cubic root of 85964687 is about 441.3400725634.

It can be divided in two parts, 8 and 5964687, that added together give a palindrome (5964695).

The spelling of 85964687 in words is "eighty-five million, nine hundred sixty-four thousand, six hundred eighty-seven".