611423772 has 12 divisors (see below), whose sum is σ = 1426655496. Its totient is φ = 203807920.

The previous prime is 611423737. The next prime is 611423797. The reversal of 611423772 is 277324116.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25475979 + ... + 25476002.

It is an arithmetic number, because the mean of its divisors is an integer number (118887958).

Almost surely, 2^611423772 is an apocalyptic number.

It is an amenable number.

611423772 is an abundant number, since it is smaller than the sum of its proper divisors (815231724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611423772 is a wasteful number, since it uses less digits than its factorization.

611423772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50951988 (or 50951986 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 611423772 is about 24726.9846928411. The cubic root of 611423772 is about 848.7519270332.

Adding to 611423772 its reverse (277324116), we get a palindrome (888747888).

The spelling of 611423772 in words is "six hundred eleven million, four hundred twenty-three thousand, seven hundred seventy-two".