386621873 has 4 divisors (see below), whose sum is σ = 421769328. Its totient is φ = 351474420.

The previous prime is 386621857. The next prime is 386621887. The reversal of 386621873 is 378126683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 386621873 - 2⁴ = 386621857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (386621173) 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, 17573711 + ... + 17573732.

It is an arithmetic number, because the mean of its divisors is an integer number (105442332).

Almost surely, 2^386621873 is an apocalyptic number.

It is an amenable number.

386621873 is a deficient number, since it is larger than the sum of its proper divisors (35147455).

386621873 is a wasteful number, since it uses less digits than its factorization.

386621873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35147454.

The product of its digits is 290304, while the sum is 44.

The square root of 386621873 is about 19662.7025863689. The cubic root of 386621873 is about 728.4987431177.

The spelling of 386621873 in words is "three hundred eighty-six million, six hundred twenty-one thousand, eight hundred seventy-three".