387297211 has 8 divisors (see below), whose sum is σ = 444260864. Its totient is φ = 330742440.

The previous prime is 387297187. The next prime is 387297221. The reversal of 387297211 is 112792783.

It is a happy number.

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

It is not a de Polignac number, because 387297211 - 2²³ = 378908603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387297221) 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 7 ways as a sum of consecutive naturals, for example, 100185 + ... + 103978.

It is an arithmetic number, because the mean of its divisors is an integer number (55532608).

Almost surely, 2^387297211 is an apocalyptic number.

387297211 is a deficient number, since it is larger than the sum of its proper divisors (56963653).

387297211 is a wasteful number, since it uses less digits than its factorization.

387297211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204441.

The product of its digits is 42336, while the sum is 40.

The square root of 387297211 is about 19679.8681652088. The cubic root of 387297211 is about 728.9226686951.

The spelling of 387297211 in words is "three hundred eighty-seven million, two hundred ninety-seven thousand, two hundred eleven".