3561403 has 8 divisors (see below), whose sum is σ = 3707280. Its totient is φ = 3417120.

The previous prime is 3561391. The next prime is 3561407. The reversal of 3561403 is 3041653.

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

It is a cyclic number.

It is not a de Polignac number, because 3561403 - 2¹⁷ = 3430331 is a prime.

It is a Duffinian number.

3561403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3561407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6313 + ... + 6853.

It is an arithmetic number, because the mean of its divisors is an integer number (463410).

Almost surely, 2^3561403 is an apocalyptic number.

3561403 is a deficient number, since it is larger than the sum of its proper divisors (145877).

3561403 is a wasteful number, since it uses less digits than its factorization.

3561403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 3561403 is about 1887.1679840438. The cubic root of 3561403 is about 152.7121905093.

The spelling of 3561403 in words is "three million, five hundred sixty-one thousand, four hundred three".