85624061 has 2 divisors, whose sum is σ = 85624062. Its totient is φ = 85624060.

The previous prime is 85624043. The next prime is 85624067. The reversal of 85624061 is 16042658.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83083225 + 2540836 = 9115^2 + 1594^2 .

It is a cyclic number.

It is not a de Polignac number, because 85624061 - 2²² = 81429757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85624067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42812030 + 42812031.

It is an arithmetic number, because the mean of its divisors is an integer number (42812031).

Almost surely, 2^85624061 is an apocalyptic number.

It is an amenable number.

85624061 is a deficient number, since it is larger than the sum of its proper divisors (1).

85624061 is an equidigital number, since it uses as much as digits as its factorization.

85624061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 85624061 is about 9253.3270232928. The cubic root of 85624061 is about 440.7563797892.

The spelling of 85624061 in words is "eighty-five million, six hundred twenty-four thousand, sixty-one".