3561963 has 4 divisors (see below), whose sum is σ = 4749288. Its totient is φ = 2374640.

The previous prime is 3561947. The next prime is 3561977. The reversal of 3561963 is 3691653.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3561963 - 2⁴ = 3561947 is a prime.

It is a D-number.

3561963 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3561913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593658 + ... + 593663.

It is an arithmetic number, because the mean of its divisors is an integer number (1187322).

Almost surely, 2^3561963 is an apocalyptic number.

3561963 is a deficient number, since it is larger than the sum of its proper divisors (1187325).

3561963 is a wasteful number, since it uses less digits than its factorization.

3561963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187324.

The product of its digits is 14580, while the sum is 33.

The square root of 3561963 is about 1887.3163486814. The cubic root of 3561963 is about 152.7201943161.

It can be divided in two parts, 3561 and 963, that multiplied together give a palindrome (3429243).

The spelling of 3561963 in words is "three million, five hundred sixty-one thousand, nine hundred sixty-three".