611744401 has 4 divisors (see below), whose sum is σ = 611799012. Its totient is φ = 611689792.

The previous prime is 611744389. The next prime is 611744407. The reversal of 611744401 is 104447116.

611744401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 589324176 + 22420225 = 24276^2 + 4735^2 .

It is a cyclic number.

It is not a de Polignac number, because 611744401 - 2⁵ = 611744369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 611744401.

It is not an unprimeable number, because it can be changed into a prime (611744407) 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, 3700 + ... + 35173.

It is an arithmetic number, because the mean of its divisors is an integer number (152949753).

Almost surely, 2^611744401 is an apocalyptic number.

It is an amenable number.

611744401 is a deficient number, since it is larger than the sum of its proper divisors (54611).

611744401 is a wasteful number, since it uses less digits than its factorization.

611744401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54610.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 611744401 is about 24733.4672256034. The cubic root of 611744401 is about 848.9002621918.

The spelling of 611744401 in words is "six hundred eleven million, seven hundred forty-four thousand, four hundred one".