61880321 has 8 divisors (see below), whose sum is σ = 66242400. Its totient is φ = 57628800.

The previous prime is 61880303. The next prime is 61880353. The reversal of 61880321 is 12308816.

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

It is a cyclic number.

It is not a de Polignac number, because 61880321 - 2⁶ = 61880257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61880381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26480 + ... + 28721.

It is an arithmetic number, because the mean of its divisors is an integer number (8280300).

Almost surely, 2^61880321 is an apocalyptic number.

It is an amenable number.

61880321 is a deficient number, since it is larger than the sum of its proper divisors (4362079).

61880321 is a wasteful number, since it uses less digits than its factorization.

61880321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55279.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 61880321 is about 7866.4045789674. The cubic root of 61880321 is about 395.5343321414.

The spelling of 61880321 in words is "sixty-one million, eight hundred eighty thousand, three hundred twenty-one".