386612505 has 12 divisors (see below), whose sum is σ = 670128420. Its totient is φ = 206193312.

The previous prime is 386612467. The next prime is 386612531. The reversal of 386612505 is 505216683.

386612505 is a `hidden beast` number, since 38 + 6 + 612 + 5 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 173686041 + 212926464 = 13179^2 + 14592^2 .

It is not a de Polignac number, because 386612505 - 2⁹ = 386611993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 386612505.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4295650 + ... + 4295739.

It is an arithmetic number, because the mean of its divisors is an integer number (55844035).

Almost surely, 2^386612505 is an apocalyptic number.

It is an amenable number.

386612505 is a deficient number, since it is larger than the sum of its proper divisors (283515915).

386612505 is a wasteful number, since it uses less digits than its factorization.

386612505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591400 (or 8591397 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 386612505 is about 19662.4643674184. The cubic root of 386612505 is about 728.4928591332.

The spelling of 386612505 in words is "three hundred eighty-six million, six hundred twelve thousand, five hundred five".