611621343 has 12 divisors (see below), whose sum is σ = 929950840. Its totient is φ = 386287056.

The previous prime is 611621333. The next prime is 611621371. The reversal of 611621343 is 343126116.

611621343 is a `hidden beast` number, since 6 + 1 + 1 + 621 + 34 + 3 = 666.

It is not a de Polignac number, because 611621343 - 2⁶ = 611621279 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 (611621303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1788196 + ... + 1788537.

Almost surely, 2^611621343 is an apocalyptic number.

611621343 is a deficient number, since it is larger than the sum of its proper divisors (318329497).

611621343 is a wasteful number, since it uses less digits than its factorization.

611621343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576758 (or 3576755 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 611621343 is about 24730.9794185350. The cubic root of 611621343 is about 848.8433370154.

Adding to 611621343 its reverse (343126116), we get a palindrome (954747459).

The spelling of 611621343 in words is "six hundred eleven million, six hundred twenty-one thousand, three hundred forty-three".