1197392838 has 8 divisors (see below), whose sum is σ = 2394785688. Its totient is φ = 399130944.

The previous prime is 1197392827. The next prime is 1197392849. The reversal of 1197392838 is 8382937911.

It is an interprime number because it is at equal distance from previous prime (1197392827) and next prime (1197392849).

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

1197392838 is an admirable number.

It is a Curzon number.

It is a congruent number.

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, 99782731 + ... + 99782742.

It is an arithmetic number, because the mean of its divisors is an integer number (299348211).

Almost surely, 2^1197392838 is an apocalyptic number.

1197392838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1197392838 is a wasteful number, since it uses less digits than its factorization.

1197392838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199565478.

The product of its digits is 653184, while the sum is 51.

The square root of 1197392838 is about 34603.3645473963. The cubic root of 1197392838 is about 1061.8884214296. Note that the first 3 decimals are identical.

The spelling of 1197392838 in words is "one billion, one hundred ninety-seven million, three hundred ninety-two thousand, eight hundred thirty-eight".