85862429 has 2 divisors, whose sum is σ = 85862430. Its totient is φ = 85862428.

The previous prime is 85862407. The next prime is 85862437. The reversal of 85862429 is 92426858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73994404 + 11868025 = 8602^2 + 3445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85862429 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 85862429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85862449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42931214 + 42931215.

It is an arithmetic number, because the mean of its divisors is an integer number (42931215).

Almost surely, 2^85862429 is an apocalyptic number.

It is an amenable number.

85862429 is a deficient number, since it is larger than the sum of its proper divisors (1).

85862429 is an equidigital number, since it uses as much as digits as its factorization.

85862429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 44.

The square root of 85862429 is about 9266.1981955924. The cubic root of 85862429 is about 441.1650066483.

The spelling of 85862429 in words is "eighty-five million, eight hundred sixty-two thousand, four hundred twenty-nine".