838594945 has 4 divisors (see below), whose sum is σ = 1006313940. Its totient is φ = 670875952.

The previous prime is 838594937. The next prime is 838594951. The reversal of 838594945 is 549495838.

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 166126321 + 672468624 = 12889^2 + 25932^2 .

It is a cyclic number.

It is not a de Polignac number, because 838594945 - 2³ = 838594937 is a prime.

It is an unprimeable number.

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, 83859490 + ... + 83859499.

It is an arithmetic number, because the mean of its divisors is an integer number (251578485).

Almost surely, 2^838594945 is an apocalyptic number.

It is an amenable number.

838594945 is a deficient number, since it is larger than the sum of its proper divisors (167718995).

838594945 is a wasteful number, since it uses less digits than its factorization.

838594945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167718994.

The product of its digits is 6220800, while the sum is 55.

The square root of 838594945 is about 28958.5038460208. The cubic root of 838594945 is about 943.0124215540.

It can be divided in two parts, 83859 and 4945, that added together give a square (88804 = 298²).

The spelling of 838594945 in words is "eight hundred thirty-eight million, five hundred ninety-four thousand, nine hundred forty-five".