386916789 has 24 divisors (see below), whose sum is σ = 603747648. Its totient is φ = 219757440.

The previous prime is 386916769. The next prime is 386916791. The reversal of 386916789 is 987619683.

It is not a de Polignac number, because 386916789 - 2⁷ = 386916661 is a prime.

It is a super-2 number, since 2×386916789² = 299409203220141042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386916769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16669 + ... + 32429.

It is an arithmetic number, because the mean of its divisors is an integer number (25156152).

Almost surely, 2^386916789 is an apocalyptic number.

It is an amenable number.

386916789 is a deficient number, since it is larger than the sum of its proper divisors (216830859).

386916789 is a wasteful number, since it uses less digits than its factorization.

386916789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15945 (or 15938 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The square root of 386916789 is about 19670.2005327856. The cubic root of 386916789 is about 728.6839295106.

The spelling of 386916789 in words is "three hundred eighty-six million, nine hundred sixteen thousand, seven hundred eighty-nine".