611228885 has 8 divisors (see below), whose sum is σ = 734487936. Its totient is φ = 488307600.

The previous prime is 611228867. The next prime is 611228899. The reversal of 611228885 is 588822116.

It is a happy number.

611228885 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 611228885 - 2²⁶ = 544120021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80441 + ... + 87710.

It is an arithmetic number, because the mean of its divisors is an integer number (91810992).

Almost surely, 2^611228885 is an apocalyptic number.

It is an amenable number.

611228885 is a deficient number, since it is larger than the sum of its proper divisors (123259051).

611228885 is a wasteful number, since it uses less digits than its factorization.

611228885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168883.

The product of its digits is 61440, while the sum is 41.

The square root of 611228885 is about 24723.0436030841. The cubic root of 611228885 is about 848.6617395604.

It can be divided in two parts, 61122 and 8885, that added together give a palindrome (70007).

The spelling of 611228885 in words is "six hundred eleven million, two hundred twenty-eight thousand, eight hundred eighty-five".