842797538 has 8 divisors (see below), whose sum is σ = 1379123280. Its totient is φ = 383089780.

The previous prime is 842797537. The next prime is 842797547. The reversal of 842797538 is 835797248.

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

It is a super-2 number, since 2×842797538² = 1420615380117722888, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 842797538.

It is not an unprimeable number, because it can be changed into a prime (842797537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19154468 + ... + 19154511.

It is an arithmetic number, because the mean of its divisors is an integer number (172390410).

Almost surely, 2^842797538 is an apocalyptic number.

842797538 is a deficient number, since it is larger than the sum of its proper divisors (536325742).

842797538 is a wasteful number, since it uses less digits than its factorization.

842797538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38308992.

The product of its digits is 3386880, while the sum is 53.

The square root of 842797538 is about 29030.9754917054. The cubic root of 842797538 is about 944.5850900125.

The spelling of 842797538 in words is "eight hundred forty-two million, seven hundred ninety-seven thousand, five hundred thirty-eight".