387425 has 6 divisors (see below), whose sum is σ = 480438. Its totient is φ = 309920.

The previous prime is 387403. The next prime is 387433. The reversal of 387425 is 524783.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 107584 + 279841 = 328^2 + 529^2 .

It is not a de Polignac number, because 387425 - 2⁸ = 387169 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 8 + 4⁵ + 7² + 2¹⁷ + 5⁷ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7724 + ... + 7773.

It is an arithmetic number, because the mean of its divisors is an integer number (80073).

2³⁸⁷⁴²⁵ is an apocalyptic number.

It is an amenable number.

387425 is a deficient number, since it is larger than the sum of its proper divisors (93013).

387425 is a wasteful number, since it uses less digits than its factorization.

387425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15507 (or 15502 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 387425 is about 622.4347355346. The cubic root of 387425 is about 72.9002829403.

The spelling of 387425 in words is "three hundred eighty-seven thousand, four hundred twenty-five".