61788448 has 24 divisors (see below), whose sum is σ = 121969260. Its totient is φ = 30812160.

The previous prime is 61788439. The next prime is 61788469. The reversal of 61788448 is 84488716.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57577744 + 4210704 = 7588^2 + 2052^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61788398 and 61788407.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10728 + ... + 15448.

Almost surely, 2^61788448 is an apocalyptic number.

It is an amenable number.

61788448 is a deficient number, since it is larger than the sum of its proper divisors (60180812).

61788448 is a wasteful number, since it uses less digits than its factorization.

61788448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140 (or 5132 counting only the distinct ones).

The product of its digits is 344064, while the sum is 46.

The square root of 61788448 is about 7860.5628297215. The cubic root of 61788448 is about 395.3384867636.

The spelling of 61788448 in words is "sixty-one million, seven hundred eighty-eight thousand, four hundred forty-eight".