61324321 has 8 divisors (see below), whose sum is σ = 66442464. Its totient is φ = 56374080.

The previous prime is 61324297. The next prime is 61324369. The reversal of 61324321 is 12342316.

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-61324321 is a prime.

It is a super-2 number, since 2×61324321² = 7521344692222082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61324292 and 61324301.

It is not an unprimeable number, because it can be changed into a prime (61324391) 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, 41215 + ... + 42676.

It is an arithmetic number, because the mean of its divisors is an integer number (8305308).

Almost surely, 2^61324321 is an apocalyptic number.

It is an amenable number.

61324321 is a deficient number, since it is larger than the sum of its proper divisors (5118143).

61324321 is a wasteful number, since it uses less digits than its factorization.

61324321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83951.

The product of its digits is 864, while the sum is 22.

The square root of 61324321 is about 7830.9846762716. The cubic root of 61324321 is about 394.3461296524.

Adding to 61324321 its reverse (12342316), we get a palindrome (73666637).

The spelling of 61324321 in words is "sixty-one million, three hundred twenty-four thousand, three hundred twenty-one".