387085085 has 4 divisors (see below), whose sum is σ = 464502108. Its totient is φ = 309668064.

The previous prime is 387085079. The next prime is 387085099. The reversal of 387085085 is 580580783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580580783 = 29 ⋅20020027.

It can be written as a sum of positive squares in 2 ways, for example, as 165611161 + 221473924 = 12869^2 + 14882^2 .

It is a cyclic number.

It is not a de Polignac number, because 387085085 - 2²⁴ = 370307869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 38708504 + ... + 38708513.

It is an arithmetic number, because the mean of its divisors is an integer number (116125527).

Almost surely, 2^387085085 is an apocalyptic number.

It is an amenable number.

387085085 is a deficient number, since it is larger than the sum of its proper divisors (77417023).

387085085 is an equidigital number, since it uses as much as digits as its factorization.

387085085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77417022.

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 387085085 is about 19674.4780108647. The cubic root of 387085085 is about 728.7895653283.

The spelling of 387085085 in words is "three hundred eighty-seven million, eighty-five thousand, eighty-five".