61740684 has 24 divisors (see below), whose sum is σ = 160068720. Its totient is φ = 20580192.

The previous prime is 61740661. The next prime is 61740689. The reversal of 61740684 is 48604716.

61740684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (61740689) 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 7 ways as a sum of consecutive naturals, for example, 285729 + ... + 285944.

It is an arithmetic number, because the mean of its divisors is an integer number (6669530).

Almost surely, 2^61740684 is an apocalyptic number.

It is an amenable number.

61740684 is an abundant number, since it is smaller than the sum of its proper divisors (98328036).

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

61740684 is a wasteful number, since it uses less digits than its factorization.

61740684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571686 (or 571678 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 61740684 is about 7857.5240375070. The cubic root of 61740684 is about 395.2365916907.

The spelling of 61740684 in words is "sixty-one million, seven hundred forty thousand, six hundred eighty-four".