1085429 has 2 divisors, whose sum is σ = 1085430. Its totient is φ = 1085428.

The previous prime is 1085419. The next prime is 1085431. The reversal of 1085429 is 9245801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 643204 + 442225 = 802^2 + 665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085429 is a prime.

It is a super-2 number, since 2×1085429² = 2356312228082, which contains 22 as substring.

Together with 1085431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542714 + 542715.

It is an arithmetic number, because the mean of its divisors is an integer number (542715).

2^1085429 is an apocalyptic number.

It is an amenable number.

1085429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085429 is an equidigital number, since it uses as much as digits as its factorization.

1085429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1085429 is about 1041.8392390383. The cubic root of 1085429 is about 102.7701854522.

The spelling of 1085429 in words is "one million, eighty-five thousand, four hundred twenty-nine".