387425285 has 8 divisors (see below), whose sum is σ = 500672760. Its totient is φ = 286098624.

The previous prime is 387425267. The next prime is 387425287. The reversal of 387425285 is 582524783.

It can be written as a sum of positive squares in 4 ways, for example, as 51179716 + 336245569 = 7154^2 + 18337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 387425285 - 2⁶ = 387425221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387425287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2980130 + ... + 2980259.

It is an arithmetic number, because the mean of its divisors is an integer number (62584095).

Almost surely, 2^387425285 is an apocalyptic number.

It is an amenable number.

387425285 is a deficient number, since it is larger than the sum of its proper divisors (113247475).

387425285 is a wasteful number, since it uses less digits than its factorization.

387425285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5960407.

The product of its digits is 537600, while the sum is 44.

The square root of 387425285 is about 19683.1218306447. The cubic root of 387425285 is about 729.0030081610.

The spelling of 387425285 in words is "three hundred eighty-seven million, four hundred twenty-five thousand, two hundred eighty-five".