61887748 has 12 divisors (see below), whose sum is σ = 116634700. Its totient is φ = 28563552.

The previous prime is 61887743. The next prime is 61887751. The reversal of 61887748 is 84778816.

It can be written as a sum of positive squares in 2 ways, for example, as 27688644 + 34199104 = 5262^2 + 5848^2 .

It is not an unprimeable number, because it can be changed into a prime (61887743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595023 + ... + 595126.

Almost surely, 2^61887748 is an apocalyptic number.

It is an amenable number.

61887748 is a deficient number, since it is larger than the sum of its proper divisors (54746952).

61887748 is a wasteful number, since it uses less digits than its factorization.

61887748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190166 (or 1190164 counting only the distinct ones).

The product of its digits is 602112, while the sum is 49.

The square root of 61887748 is about 7866.8766356159. The cubic root of 61887748 is about 395.5501557825.

The spelling of 61887748 in words is "sixty-one million, eight hundred eighty-seven thousand, seven hundred forty-eight".