386690553 has 12 divisors (see below), whose sum is σ = 577813860. Its totient is φ = 248904096.

The previous prime is 386690533. The next prime is 386690599. The reversal of 386690553 is 355096683.

386690553 is a `hidden beast` number, since 3 + 8 + 6 + 6 + 90 + 553 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 328443129 + 58247424 = 18123^2 + 7632^2 .

It is not a de Polignac number, because 386690553 - 2¹⁰ = 386689529 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 386690499 and 386690508.

It is not an unprimeable number, because it can be changed into a prime (386690533) 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 11 ways as a sum of consecutive naturals, for example, 740526 + ... + 741047.

It is an arithmetic number, because the mean of its divisors is an integer number (48151155).

Almost surely, 2^386690553 is an apocalyptic number.

It is an amenable number.

386690553 is a deficient number, since it is larger than the sum of its proper divisors (191123307).

386690553 is a wasteful number, since it uses less digits than its factorization.

386690553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481608 (or 1481605 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The square root of 386690553 is about 19664.4489625313. The cubic root of 386690553 is about 728.5418777106.

The spelling of 386690553 in words is "three hundred eighty-six million, six hundred ninety thousand, five hundred fifty-three".