85872623 has 2 divisors, whose sum is σ = 85872624. Its totient is φ = 85872622.

The previous prime is 85872599. The next prime is 85872637. The reversal of 85872623 is 32627858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85872623 - 2¹⁶ = 85807087 is a prime.

It is equal to p_4991486 and since 85872623 and 4991486 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85872653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42936311 + 42936312.

It is an arithmetic number, because the mean of its divisors is an integer number (42936312).

Almost surely, 2^85872623 is an apocalyptic number.

85872623 is a deficient number, since it is larger than the sum of its proper divisors (1).

85872623 is an equidigital number, since it uses as much as digits as its factorization.

85872623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 41.

The square root of 85872623 is about 9266.7482430462. The cubic root of 85872623 is about 441.1824650337.

The spelling of 85872623 in words is "eighty-five million, eight hundred seventy-two thousand, six hundred twenty-three".