616891226 has 8 divisors (see below), whose sum is σ = 1057527840. Its totient is φ = 264381948.

The previous prime is 616891217. The next prime is 616891229. The reversal of 616891226 is 622198616.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (616891229) 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, 22031816 + ... + 22031843.

It is an arithmetic number, because the mean of its divisors is an integer number (132190980).

Almost surely, 2^616891226 is an apocalyptic number.

616891226 is a deficient number, since it is larger than the sum of its proper divisors (440636614).

616891226 is a wasteful number, since it uses less digits than its factorization.

616891226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44063668.

The product of its digits is 62208, while the sum is 41.

The square root of 616891226 is about 24837.2950620634. The cubic root of 616891226 is about 851.2743174275.

The spelling of 616891226 in words is "six hundred sixteen million, eight hundred ninety-one thousand, two hundred twenty-six".