61795321 has 9 divisors (see below), whose sum is σ = 71948421. Its totient is φ = 52920252.

The previous prime is 61795313. The next prime is 61795337. The reversal of 61795321 is 12359716.

The square root of 61795321 is 7861.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 61795321 - 2³ = 61795313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61795351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 54466 + ... + 55588.

It is an arithmetic number, because the mean of its divisors is an integer number (7994269).

Almost surely, 2^61795321 is an apocalyptic number.

61795321 is the 7861-st square number.

61795321 is the 3931-st centered octagonal number.

It is an amenable number.

61795321 is a deficient number, since it is larger than the sum of its proper divisors (10153100).

61795321 is an frugal number, since it uses more digits than its factorization.

61795321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260 (or 1130 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The cubic root of 61795321 is about 395.3531446312.

The spelling of 61795321 in words is "sixty-one million, seven hundred ninety-five thousand, three hundred twenty-one".