61386329 has 2 divisors, whose sum is σ = 61386330. Its totient is φ = 61386328.

The previous prime is 61386323. The next prime is 61386343. The reversal of 61386329 is 92368316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41628304 + 19758025 = 6452^2 + 4445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61386329 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61386292 and 61386301.

It is not a weakly prime, because it can be changed into another prime (61386323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30693164 + 30693165.

It is an arithmetic number, because the mean of its divisors is an integer number (30693165).

Almost surely, 2^61386329 is an apocalyptic number.

It is an amenable number.

61386329 is a deficient number, since it is larger than the sum of its proper divisors (1).

61386329 is an equidigital number, since it uses as much as digits as its factorization.

61386329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 61386329 is about 7834.9428204678. The cubic root of 61386329 is about 394.4789990550.

The spelling of 61386329 in words is "sixty-one million, three hundred eighty-six thousand, three hundred twenty-nine".