867049445 has 8 divisors (see below), whose sum is σ = 1040711544. Its totient is φ = 693471424.

The previous prime is 867049441. The next prime is 867049459. The reversal of 867049445 is 544940768.

It can be written as a sum of positive squares in 4 ways, for example, as 5098564 + 861950881 = 2258^2 + 29359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 867049445 - 2² = 867049441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 867049445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867049441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4487 + ... + 41883.

It is an arithmetic number, because the mean of its divisors is an integer number (130088943).

Almost surely, 2^867049445 is an apocalyptic number.

It is an amenable number.

867049445 is a deficient number, since it is larger than the sum of its proper divisors (173662099).

867049445 is a wasteful number, since it uses less digits than its factorization.

867049445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42039.

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 867049445 is about 29445.7033368198. The cubic root of 867049445 is about 953.5598460762.

The spelling of 867049445 in words is "eight hundred sixty-seven million, forty-nine thousand, four hundred forty-five".