61963321 has 8 divisors (see below), whose sum is σ = 71121024. Its totient is φ = 52882080.

The previous prime is 61963273. The next prime is 61963331. The reversal of 61963321 is 12336916.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61963321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61963331) 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, 17365 + ... + 20626.

It is an arithmetic number, because the mean of its divisors is an integer number (8890128).

Almost surely, 2^61963321 is an apocalyptic number.

It is an amenable number.

61963321 is a deficient number, since it is larger than the sum of its proper divisors (9157703).

61963321 is a wasteful number, since it uses less digits than its factorization.

61963321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38231.

The product of its digits is 5832, while the sum is 31.

The square root of 61963321 is about 7871.6784106060. The cubic root of 61963321 is about 395.7110963748.

The spelling of 61963321 in words is "sixty-one million, nine hundred sixty-three thousand, three hundred twenty-one".