387875029 has 4 divisors (see below), whose sum is σ = 401250060. Its totient is φ = 374500000.

The previous prime is 387875023. The next prime is 387875051. The reversal of 387875029 is 920578783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 920578783 = 53 ⋅17369411.

It can be written as a sum of positive squares in 2 ways, for example, as 211702500 + 176172529 = 14550^2 + 13273^2 .

It is a cyclic number.

It is not a de Polignac number, because 387875029 - 2⁵ = 387874997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387875023) 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, 6687472 + ... + 6687529.

It is an arithmetic number, because the mean of its divisors is an integer number (100312515).

Almost surely, 2^387875029 is an apocalyptic number.

It is an amenable number.

387875029 is a deficient number, since it is larger than the sum of its proper divisors (13375031).

387875029 is a wasteful number, since it uses less digits than its factorization.

387875029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13375030.

The product of its (nonzero) digits is 846720, while the sum is 49.

The square root of 387875029 is about 19694.5431274757. The cubic root of 387875029 is about 729.2849876425.

The spelling of 387875029 in words is "three hundred eighty-seven million, eight hundred seventy-five thousand, twenty-nine".