845369069 has 4 divisors (see below), whose sum is σ = 851822400. Its totient is φ = 838915740.

The previous prime is 845369059. The next prime is 845369093. The reversal of 845369069 is 960963548.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 845369069 - 2¹⁶ = 845303533 is a prime.

It is a super-2 number, since 2×845369069² = 1429297725643853522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845369029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3226469 + ... + 3226730.

It is an arithmetic number, because the mean of its divisors is an integer number (212955600).

Almost surely, 2^845369069 is an apocalyptic number.

It is an amenable number.

845369069 is a deficient number, since it is larger than the sum of its proper divisors (6453331).

845369069 is a wasteful number, since it uses less digits than its factorization.

845369069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6453330.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 845369069 is about 29075.2311942657. The cubic root of 845369069 is about 945.5448157822.

The spelling of 845369069 in words is "eight hundred forty-five million, three hundred sixty-nine thousand, sixty-nine".