368871921 has 32 divisors (see below), whose sum is σ = 598487040. Its totient is φ = 222685200.

The previous prime is 368871913. The next prime is 368871929. The reversal of 368871921 is 129178863.

It is an interprime number because it is at equal distance from previous prime (368871913) and next prime (368871929).

It is not a de Polignac number, because 368871921 - 2³ = 368871913 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (368871929) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 78196 + ... + 82778.

It is an arithmetic number, because the mean of its divisors is an integer number (18702720).

Almost surely, 2^368871921 is an apocalyptic number.

It is an amenable number.

368871921 is a deficient number, since it is larger than the sum of its proper divisors (229615119).

368871921 is a wasteful number, since it uses less digits than its factorization.

368871921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874 (or 4868 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 368871921 is about 19206.0386597549. The cubic root of 368871921 is about 717.1750942277.

The spelling of 368871921 in words is "three hundred sixty-eight million, eight hundred seventy-one thousand, nine hundred twenty-one".