666287413 has 16 divisors (see below), whose sum is σ = 740805120. Its totient is φ = 594140400.

The previous prime is 666287411. The next prime is 666287429. The reversal of 666287413 is 314782666.

It is a cyclic number.

It is not a de Polignac number, because 666287413 - 2¹ = 666287411 is a prime.

It is a super-3 number, since 3×666287413³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 666287413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666287411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408706 + ... + 410332.

It is an arithmetic number, because the mean of its divisors is an integer number (46300320).

Almost surely, 2^666287413 is an apocalyptic number.

It is an amenable number.

666287413 is a deficient number, since it is larger than the sum of its proper divisors (74517707).

666287413 is a wasteful number, since it uses less digits than its factorization.

666287413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328.

The product of its digits is 290304, while the sum is 43.

The square root of 666287413 is about 25812.5437142487. The cubic root of 666287413 is about 873.4147790167.

The spelling of 666287413 in words is "six hundred sixty-six million, two hundred eighty-seven thousand, four hundred thirteen".