845429 has 4 divisors (see below), whose sum is σ = 910476. Its totient is φ = 780384.

The previous prime is 845387. The next prime is 845431. The reversal of 845429 is 924548.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 483025 + 362404 = 695^2 + 602^2 .

It is a cyclic number.

It is not a de Polignac number, because 845429 - 2¹² = 841333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 845395 and 845404.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 845429.

It is not an unprimeable number, because it can be changed into a prime (845459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32504 + ... + 32529.

It is an arithmetic number, because the mean of its divisors is an integer number (227619).

2⁸⁴⁵⁴²⁹ is an apocalyptic number.

It is an amenable number.

845429 is a deficient number, since it is larger than the sum of its proper divisors (65047).

845429 is a wasteful number, since it uses less digits than its factorization.

845429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65046.

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

The square root of 845429 is about 919.4721311709. The cubic root of 845429 is about 94.5567159517.

The spelling of 845429 in words is "eight hundred forty-five thousand, four hundred twenty-nine".