61797888 has 60 divisors (see below), whose sum is σ = 178366188. Its totient is φ = 20597760.

The previous prime is 61797887. The next prime is 61797917. The reversal of 61797888 is 88879716.

61797888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61797888² = 7637957922521088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61797887) 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 5 ways as a sum of consecutive naturals, for example, 2098 + ... + 11313.

Almost surely, 2^61797888 is an apocalyptic number.

It is an amenable number.

61797888 is an abundant number, since it is smaller than the sum of its proper divisors (116568300).

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

61797888 is a wasteful number, since it uses less digits than its factorization.

61797888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13435 (or 13416 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 54.

The square root of 61797888 is about 7861.1632726970. The cubic root of 61797888 is about 395.3586189263.

The spelling of 61797888 in words is "sixty-one million, seven hundred ninety-seven thousand, eight hundred eighty-eight".