386672137 has 4 divisors (see below), whose sum is σ = 390500676. Its totient is φ = 382843600.

The previous prime is 386672131. The next prime is 386672141. The reversal of 386672137 is 731276683.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 336318921 + 50353216 = 18339^2 + 7096^2 .

It is a cyclic number.

It is not a de Polignac number, because 386672137 - 2³ = 386672129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 386672093 and 386672102.

It is not an unprimeable number, because it can be changed into a prime (386672131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1914118 + ... + 1914319.

It is an arithmetic number, because the mean of its divisors is an integer number (97625169).

Almost surely, 2^386672137 is an apocalyptic number.

It is an amenable number.

386672137 is a deficient number, since it is larger than the sum of its proper divisors (3828539).

386672137 is a wasteful number, since it uses less digits than its factorization.

386672137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3828538.

The product of its digits is 254016, while the sum is 43.

The square root of 386672137 is about 19663.9807007635. The cubic root of 386672137 is about 728.5303120111.

It can be divided in two parts, 38667 and 2137, that added together give a palindrome (40804).

The spelling of 386672137 in words is "three hundred eighty-six million, six hundred seventy-two thousand, one hundred thirty-seven".