387616325 has 6 divisors (see below), whose sum is σ = 480644274. Its totient is φ = 310093040.

The previous prime is 387616301. The next prime is 387616331. The reversal of 387616325 is 523616783.

387616325 = 13921² + 13922².

It can be written as a sum of positive squares in 3 ways, for example, as 89605156 + 298011169 = 9466^2 + 17263^2 .

It is not a de Polignac number, because 387616325 - 2⁶ = 387616261 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7752302 + ... + 7752351.

It is an arithmetic number, because the mean of its divisors is an integer number (80107379).

Almost surely, 2^387616325 is an apocalyptic number.

387616325 is the 13922-nd centered square number.

It is an amenable number.

387616325 is a deficient number, since it is larger than the sum of its proper divisors (93027949).

387616325 is a wasteful number, since it uses less digits than its factorization.

387616325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15504663 (or 15504658 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 387616325 is about 19687.9741212751. The cubic root of 387616325 is about 729.1228126369.

The spelling of 387616325 in words is "three hundred eighty-seven million, six hundred sixteen thousand, three hundred twenty-five".