61097321 has 8 divisors (see below), whose sum is σ = 62985600. Its totient is φ = 59233648.

The previous prime is 61097299. The next prime is 61097341. The reversal of 61097321 is 12379016.

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 61097321 - 2¹⁰ = 61096297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61097341) 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, 1046 + ... + 11103.

It is an arithmetic number, because the mean of its divisors is an integer number (7873200).

Almost surely, 2^61097321 is an apocalyptic number.

It is an amenable number.

61097321 is a deficient number, since it is larger than the sum of its proper divisors (1888279).

61097321 is a wasteful number, since it uses less digits than its factorization.

61097321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12303.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 61097321 is about 7816.4775314716. The cubic root of 61097321 is about 393.8589534385.

The spelling of 61097321 in words is "sixty-one million, ninety-seven thousand, three hundred twenty-one".