61843416 has 64 divisors (see below), whose sum is σ = 167741280. Its totient is φ = 18923520.

The previous prime is 61843403. The next prime is 61843427. The reversal of 61843416 is 61434816.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14880 + ... + 18576.

Almost surely, 2^61843416 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 61843416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83870640).

61843416 is an abundant number, since it is smaller than the sum of its proper divisors (105897864).

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

61843416 is a wasteful number, since it uses less digits than its factorization.

61843416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3764 (or 3760 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 61843416 is about 7864.0584941873. The cubic root of 61843416 is about 395.4556851815.

The spelling of 61843416 in words is "sixty-one million, eight hundred forty-three thousand, four hundred sixteen".