611963 has 4 divisors (see below), whose sum is σ = 667608. Its totient is φ = 556320.

The previous prime is 611957. The next prime is 611969. The reversal of 611963 is 369116.

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

It is an interprime number because it is at equal distance from previous prime (611957) and next prime (611969).

It is a cyclic number.

It is not a de Polignac number, because 611963 - 2⁸ = 611707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611969) 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, 27806 + ... + 27827.

It is an arithmetic number, because the mean of its divisors is an integer number (166902).

2⁶¹¹⁹⁶³ is an apocalyptic number.

611963 is a deficient number, since it is larger than the sum of its proper divisors (55645).

611963 is a wasteful number, since it uses less digits than its factorization.

611963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55644.

The product of its digits is 972, while the sum is 26.

The square root of 611963 is about 782.2806401797. The cubic root of 611963 is about 84.9001364683.

The spelling of 611963 in words is "six hundred eleven thousand, nine hundred sixty-three".