85354429 has 2 divisors, whose sum is σ = 85354430. Its totient is φ = 85354428.

The previous prime is 85354391. The next prime is 85354459. The reversal of 85354429 is 92445358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84548025 + 806404 = 9195^2 + 898^2 .

It is a cyclic number.

It is not a de Polignac number, because 85354429 - 2¹¹ = 85352381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85354391 and 85354400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85354459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42677214 + 42677215.

It is an arithmetic number, because the mean of its divisors is an integer number (42677215).

Almost surely, 2^85354429 is an apocalyptic number.

It is an amenable number.

85354429 is a deficient number, since it is larger than the sum of its proper divisors (1).

85354429 is an equidigital number, since it uses as much as digits as its factorization.

85354429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 40.

The square root of 85354429 is about 9238.7460729257. The cubic root of 85354429 is about 440.2932428825.

The spelling of 85354429 in words is "eighty-five million, three hundred fifty-four thousand, four hundred twenty-nine".