85598951 has 2 divisors, whose sum is σ = 85598952. Its totient is φ = 85598950.

The previous prime is 85598837. The next prime is 85598987. The reversal of 85598951 is 15989558.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85598951 - 2¹⁸ = 85336807 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 85598951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85591951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42799475 + 42799476.

It is an arithmetic number, because the mean of its divisors is an integer number (42799476).

Almost surely, 2^85598951 is an apocalyptic number.

85598951 is a deficient number, since it is larger than the sum of its proper divisors (1).

85598951 is an equidigital number, since it uses as much as digits as its factorization.

85598951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 50.

The square root of 85598951 is about 9251.9701145216. The cubic root of 85598951 is about 440.7132903639.

The spelling of 85598951 in words is "eighty-five million, five hundred ninety-eight thousand, nine hundred fifty-one".