3561287 has 8 divisors (see below), whose sum is σ = 3784800. Its totient is φ = 3344544.

The previous prime is 3561263. The next prime is 3561293. The reversal of 3561287 is 7821653.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3561287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587 + ... + 2732.

It is an arithmetic number, because the mean of its divisors is an integer number (473100).

Almost surely, 2^3561287 is an apocalyptic number.

3561287 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3561287 is a deficient number, since it is larger than the sum of its proper divisors (223513).

3561287 is a wasteful number, since it uses less digits than its factorization.

3561287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385.

The product of its digits is 10080, while the sum is 32.

The square root of 3561287 is about 1887.1372499106. The cubic root of 3561287 is about 152.7105324730.

It can be divided in two parts, 3 and 561287, that multiplied together give a palindrome (1683861).

The spelling of 3561287 in words is "three million, five hundred sixty-one thousand, two hundred eighty-seven".