386987117 has 16 divisors (see below), whose sum is σ = 445201920. Its totient is φ = 332679600.

The previous prime is 386987071. The next prime is 386987119. The reversal of 386987117 is 711789683.

It is not a de Polignac number, because 386987117 - 2¹⁸ = 386724973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386987119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141392 + ... + 144102.

It is an arithmetic number, because the mean of its divisors is an integer number (27825120).

Almost surely, 2^386987117 is an apocalyptic number.

It is an amenable number.

386987117 is a deficient number, since it is larger than the sum of its proper divisors (58214803).

386987117 is a wasteful number, since it uses less digits than its factorization.

386987117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424.

The product of its digits is 508032, while the sum is 50.

The square root of 386987117 is about 19671.9881303340. The cubic root of 386987117 is about 728.7280766245.

The spelling of 386987117 in words is "three hundred eighty-six million, nine hundred eighty-seven thousand, one hundred seventeen".