387695123 has 4 divisors (see below), whose sum is σ = 387734760. Its totient is φ = 387655488.

The previous prime is 387695117. The next prime is 387695131. The reversal of 387695123 is 321596783.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 321596783 = 89 ⋅3613447.

It is a cyclic number.

It is not a de Polignac number, because 387695123 - 2²⁸ = 119259667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387695023) 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, 6536 + ... + 28602.

It is an arithmetic number, because the mean of its divisors is an integer number (96933690).

Almost surely, 2^387695123 is an apocalyptic number.

387695123 is a deficient number, since it is larger than the sum of its proper divisors (39637).

387695123 is a wasteful number, since it uses less digits than its factorization.

387695123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39636.

The product of its digits is 272160, while the sum is 44.

The square root of 387695123 is about 19689.9751904364. The cubic root of 387695123 is about 729.1722167538.

The spelling of 387695123 in words is "three hundred eighty-seven million, six hundred ninety-five thousand, one hundred twenty-three".