387539065 has 4 divisors (see below), whose sum is σ = 465046884. Its totient is φ = 310031248.

The previous prime is 387539063. The next prime is 387539069. The reversal of 387539065 is 560935783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42471289 + 345067776 = 6517^2 + 18576^2 .

It is a cyclic number.

It is not a de Polignac number, because 387539065 - 2¹ = 387539063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387539063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38753902 + ... + 38753911.

It is an arithmetic number, because the mean of its divisors is an integer number (116261721).

Almost surely, 2^387539065 is an apocalyptic number.

It is an amenable number.

387539065 is a deficient number, since it is larger than the sum of its proper divisors (77507819).

387539065 is an equidigital number, since it uses as much as digits as its factorization.

387539065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77507818.

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 387539065 is about 19686.0119120151. The cubic root of 387539065 is about 729.0743663014.

The spelling of 387539065 in words is "three hundred eighty-seven million, five hundred thirty-nine thousand, sixty-five".