61974980 has 12 divisors (see below), whose sum is σ = 130147500. Its totient is φ = 24789984.

The previous prime is 61974973. The next prime is 61975003. The reversal of 61974980 is 8947916.

61974980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 35617024 + 26357956 = 5968^2 + 5134^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1549355 + ... + 1549394.

It is an arithmetic number, because the mean of its divisors is an integer number (10845625).

Almost surely, 2^61974980 is an apocalyptic number.

It is an amenable number.

61974980 is an abundant number, since it is smaller than the sum of its proper divisors (68172520).

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

61974980 is a wasteful number, since it uses less digits than its factorization.

61974980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098758 (or 3098756 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 61974980 is about 7872.4189421041. The cubic root of 61974980 is about 395.7359137789.

The spelling of 61974980 in words is "sixty-one million, nine hundred seventy-four thousand, nine hundred eighty".