61896829 has 2 divisors, whose sum is σ = 61896830. Its totient is φ = 61896828.

The previous prime is 61896827. The next prime is 61896853. The reversal of 61896829 is 92869816.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59320804 + 2576025 = 7702^2 + 1605^2 .

It is a cyclic number.

It is not a de Polignac number, because 61896829 - 2¹ = 61896827 is a prime.

Together with 61896827, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61896827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30948414 + 30948415.

It is an arithmetic number, because the mean of its divisors is an integer number (30948415).

Almost surely, 2^61896829 is an apocalyptic number.

It is an amenable number.

61896829 is a deficient number, since it is larger than the sum of its proper divisors (1).

61896829 is an equidigital number, since it uses as much as digits as its factorization.

61896829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 49.

The square root of 61896829 is about 7867.4537812433. The cubic root of 61896829 is about 395.5695016434.

The spelling of 61896829 in words is "sixty-one million, eight hundred ninety-six thousand, eight hundred twenty-nine".