61346728 has 16 divisors (see below), whose sum is σ = 115312500. Its totient is φ = 30596736.

The previous prime is 61346723. The next prime is 61346743. The reversal of 61346728 is 82764316.

It can be written as a sum of positive squares in 2 ways, for example, as 55383364 + 5963364 = 7442^2 + 2442^2 .

It is not an unprimeable number, because it can be changed into a prime (61346723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6103 + ... + 12646.

Almost surely, 2^61346728 is an apocalyptic number.

It is an amenable number.

61346728 is a deficient number, since it is larger than the sum of its proper divisors (53965772).

61346728 is a wasteful number, since it uses less digits than its factorization.

61346728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19164 (or 19160 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 61346728 is about 7832.4152086058. The cubic root of 61346728 is about 394.3941532185.

The spelling of 61346728 in words is "sixty-one million, three hundred forty-six thousand, seven hundred twenty-eight".