838851972 has 36 divisors (see below), whose sum is σ = 2276885520. Its totient is φ = 239671824.

The previous prime is 838851917. The next prime is 838851973. The reversal of 838851972 is 279158838.

It is not an unprimeable number, because it can be changed into a prime (838851973) 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 11 ways as a sum of consecutive naturals, for example, 712722 + ... + 713897.

It is an arithmetic number, because the mean of its divisors is an integer number (63246820).

Almost surely, 2^838851972 is an apocalyptic number.

It is an amenable number.

838851972 is an abundant number, since it is smaller than the sum of its proper divisors (1438033548).

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

838851972 is a wasteful number, since it uses less digits than its factorization.

838851972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426640 (or 1426631 counting only the distinct ones).

The product of its digits is 967680, while the sum is 51.

The square root of 838851972 is about 28962.9413561537. The cubic root of 838851972 is about 943.1087552673.

The spelling of 838851972 in words is "eight hundred thirty-eight million, eight hundred fifty-one thousand, nine hundred seventy-two".