387737216 has 32 divisors (see below), whose sum is σ = 788892480. Its totient is φ = 189740800.

The previous prime is 387737191. The next prime is 387737249. The reversal of 387737216 is 612737783.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26210 + ... + 38241.

It is an arithmetic number, because the mean of its divisors is an integer number (24652890).

Almost surely, 2^387737216 is an apocalyptic number.

It is an amenable number.

387737216 is an abundant number, since it is smaller than the sum of its proper divisors (401155264).

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

387737216 is an equidigital number, since it uses as much as digits as its factorization.

387737216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64512 (or 64500 counting only the distinct ones).

The product of its digits is 296352, while the sum is 44.

The square root of 387737216 is about 19691.0440556107. The cubic root of 387737216 is about 729.1986051309.

The spelling of 387737216 in words is "three hundred eighty-seven million, seven hundred thirty-seven thousand, two hundred sixteen".