387429 has 16 divisors (see below), whose sum is σ = 622080. Its totient is φ = 209520.

The previous prime is 387403. The next prime is 387433. The reversal of 387429 is 924783.

It is not a de Polignac number, because 387429 - 2⁵ = 387397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 387429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87 + ... + 884.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2³⁸⁷⁴²⁹ is an apocalyptic number.

It is an amenable number.

387429 is a deficient number, since it is larger than the sum of its proper divisors (234651).

387429 is a wasteful number, since it uses less digits than its factorization.

387429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000.

The product of its digits is 12096, while the sum is 33.

The square root of 387429 is about 622.4379487146. The cubic root of 387429 is about 72.9005338277.

The spelling of 387429 in words is "three hundred eighty-seven thousand, four hundred twenty-nine".