61788843 has 12 divisors (see below), whose sum is σ = 89365848. Its totient is φ = 41139360.

The previous prime is 61788827. The next prime is 61788847. The reversal of 61788843 is 34888716.

It is not a de Polignac number, because 61788843 - 2⁴ = 61788827 is a prime.

It is a super-2 number, since 2×61788843² = 7635722238557298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61788847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3708 + ... + 11718.

It is an arithmetic number, because the mean of its divisors is an integer number (7447154).

Almost surely, 2^61788843 is an apocalyptic number.

61788843 is a deficient number, since it is larger than the sum of its proper divisors (27577005).

61788843 is a wasteful number, since it uses less digits than its factorization.

61788843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8874 (or 8871 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 61788843 is about 7860.5879551087. The cubic root of 61788843 is about 395.3393291992.

The spelling of 61788843 in words is "sixty-one million, seven hundred eighty-eight thousand, eight hundred forty-three".