61977282 has 8 divisors (see below), whose sum is σ = 123954576. Its totient is φ = 20659092.

The previous prime is 61977271. The next prime is 61977287. The reversal of 61977282 is 28277916.

61977282 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

61977282 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (61977287) 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 3 ways as a sum of consecutive naturals, for example, 5164768 + ... + 5164779.

It is an arithmetic number, because the mean of its divisors is an integer number (15494322).

Almost surely, 2^61977282 is an apocalyptic number.

61977282 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61977282 is a wasteful number, since it uses less digits than its factorization.

61977282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10329552.

The product of its digits is 84672, while the sum is 42.

The square root of 61977282 is about 7872.5651473964. The cubic root of 61977282 is about 395.7408134594.

The spelling of 61977282 in words is "sixty-one million, nine hundred seventy-seven thousand, two hundred eighty-two".