61743828 has 24 divisors (see below), whose sum is σ = 144393088. Its totient is φ = 20534976.

The previous prime is 61743821. The next prime is 61743833. The reversal of 61743828 is 82834716.

61743828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

61743828 is a nontrivial binomial coefficient, being equal to C(11113, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61743821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 11112.

Almost surely, 2^61743828 is an apocalyptic number.

61743828 is the 11112-nd triangular number.

It is an amenable number.

61743828 is an abundant number, since it is smaller than the sum of its proper divisors (82649260).

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

61743828 is a wasteful number, since it uses less digits than its factorization.

61743828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11583 (or 11581 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 61743828 is about 7857.7240979816. The cubic root of 61743828 is about 395.2433004100.

The spelling of 61743828 in words is "sixty-one million, seven hundred forty-three thousand, eight hundred twenty-eight".