61789356 has 54 divisors (see below), whose sum is σ = 165945780. Its totient is φ = 19381632.

The previous prime is 61789333. The next prime is 61789367. The reversal of 61789356 is 65398716.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7435 + ... + 13373.

It is an arithmetic number, because the mean of its divisors is an integer number (3073070).

Almost surely, 2^61789356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61789356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82972890).

61789356 is an abundant number, since it is smaller than the sum of its proper divisors (104156424).

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

61789356 is a wasteful number, since it uses less digits than its factorization.

61789356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983 (or 5961 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 61789356 is about 7860.6205861878. The cubic root of 61789356 is about 395.3404232938.

The spelling of 61789356 in words is "sixty-one million, seven hundred eighty-nine thousand, three hundred fifty-six".