85229401 has 2 divisors, whose sum is σ = 85229402. Its totient is φ = 85229400.

The previous prime is 85229371. The next prime is 85229407. The reversal of 85229401 is 10492258.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69705801 + 15523600 = 8349^2 + 3940^2 .

It is a cyclic number.

It is not a de Polignac number, because 85229401 - 2²³ = 76840793 is a prime.

It is not a weakly prime, because it can be changed into another prime (85229407) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42614700 + 42614701.

It is an arithmetic number, because the mean of its divisors is an integer number (42614701).

Almost surely, 2^85229401 is an apocalyptic number.

It is an amenable number.

85229401 is a deficient number, since it is larger than the sum of its proper divisors (1).

85229401 is an equidigital number, since it uses as much as digits as its factorization.

85229401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 85229401 is about 9231.9770905262. The cubic root of 85229401 is about 440.0781558824.

The spelling of 85229401 in words is "eighty-five million, two hundred twenty-nine thousand, four hundred one".