61027788 has 12 divisors (see below), whose sum is σ = 142398200. Its totient is φ = 20342592.

The previous prime is 61027787. The next prime is 61027823. The reversal of 61027788 is 88772016.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (61027783) 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, 2542813 + ... + 2542836.

Almost surely, 2^61027788 is an apocalyptic number.

It is an amenable number.

61027788 is an abundant number, since it is smaller than the sum of its proper divisors (81370412).

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

61027788 is a wasteful number, since it uses less digits than its factorization.

61027788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085656 (or 5085654 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 61027788 is about 7812.0284177671. The cubic root of 61027788 is about 393.7094837626.

The spelling of 61027788 in words is "sixty-one million, twenty-seven thousand, seven hundred eighty-eight".