387212712 has 16 divisors (see below), whose sum is σ = 968031840. Its totient is φ = 129070896.

The previous prime is 387212701. The next prime is 387212719. The reversal of 387212712 is 217212783.

It is not an unprimeable number, because it can be changed into a prime (387212719) 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, 8066908 + ... + 8066955.

It is an arithmetic number, because the mean of its divisors is an integer number (60501990).

Almost surely, 2^387212712 is an apocalyptic number.

It is an amenable number.

387212712 is an abundant number, since it is smaller than the sum of its proper divisors (580819128).

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

387212712 is a wasteful number, since it uses less digits than its factorization.

387212712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16133872 (or 16133868 counting only the distinct ones).

The product of its digits is 9408, while the sum is 33.

The square root of 387212712 is about 19677.7212095303. The cubic root of 387212712 is about 728.8696536679.

The spelling of 387212712 in words is "three hundred eighty-seven million, two hundred twelve thousand, seven hundred twelve".