61834439 has 2 divisors, whose sum is σ = 61834440. Its totient is φ = 61834438.

The previous prime is 61834403. The next prime is 61834447. The reversal of 61834439 is 93443816.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61834439 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61834499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30917219 + 30917220.

It is an arithmetic number, because the mean of its divisors is an integer number (30917220).

Almost surely, 2^61834439 is an apocalyptic number.

61834439 is a deficient number, since it is larger than the sum of its proper divisors (1).

61834439 is an equidigital number, since it uses as much as digits as its factorization.

61834439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 61834439 is about 7863.4877122051. The cubic root of 61834439 is about 395.4365498787.

The spelling of 61834439 in words is "sixty-one million, eight hundred thirty-four thousand, four hundred thirty-nine".