387467321 has 2 divisors, whose sum is σ = 387467322. Its totient is φ = 387467320.

The previous prime is 387467309. The next prime is 387467351. The reversal of 387467321 is 123764783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282609721 + 104857600 = 16811^2 + 10240^2 .

It is an emirp because it is prime and its reverse (123764783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 387467321 - 2⁶ = 387467257 is a prime.

It is not a weakly prime, because it can be changed into another prime (387467351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193733660 + 193733661.

It is an arithmetic number, because the mean of its divisors is an integer number (193733661).

Almost surely, 2^387467321 is an apocalyptic number.

It is an amenable number.

387467321 is a deficient number, since it is larger than the sum of its proper divisors (1).

387467321 is an equidigital number, since it uses as much as digits as its factorization.

387467321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 41.

The square root of 387467321 is about 19684.1896200987. The cubic root of 387467321 is about 729.0293730399.

The spelling of 387467321 in words is "three hundred eighty-seven million, four hundred sixty-seven thousand, three hundred twenty-one".