387614321 has 2 divisors, whose sum is σ = 387614322. Its totient is φ = 387614320.

The previous prime is 387614309. The next prime is 387614323. The reversal of 387614321 is 123416783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372490000 + 15124321 = 19300^2 + 3889^2 .

It is a cyclic number.

It is not a de Polignac number, because 387614321 - 2¹⁰ = 387613297 is a prime.

Together with 387614323, it forms a pair of twin primes.

It is a Chen prime.

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

It is not a weakly prime, because it can be changed into another prime (387614323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193807160 + 193807161.

It is an arithmetic number, because the mean of its divisors is an integer number (193807161).

Almost surely, 2^387614321 is an apocalyptic number.

It is an amenable number.

387614321 is a deficient number, since it is larger than the sum of its proper divisors (1).

387614321 is an equidigital number, since it uses as much as digits as its factorization.

387614321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 387614321 is about 19687.9232271969. The cubic root of 387614321 is about 729.1215560983.

The spelling of 387614321 in words is "three hundred eighty-seven million, six hundred fourteen thousand, three hundred twenty-one".