611949 has 24 divisors (see below), whose sum is σ = 948672. Its totient is φ = 349440.

The previous prime is 611939. The next prime is 611951. The reversal of 611949 is 949116.

It is not a de Polignac number, because 611949 - 2⁸ = 611693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8584 + ... + 8654.

It is an arithmetic number, because the mean of its divisors is an integer number (39528).

2⁶¹¹⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

611949 is a deficient number, since it is larger than the sum of its proper divisors (336723).

611949 is a wasteful number, since it uses less digits than its factorization.

611949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 104 counting only the distinct ones).

The product of its digits is 1944, while the sum is 30.

The square root of 611949 is about 782.2716919332. The cubic root of 611949 is about 84.8994890376.

The spelling of 611949 in words is "six hundred eleven thousand, nine hundred forty-nine".