61043699 has 2 divisors, whose sum is σ = 61043700. Its totient is φ = 61043698.

The previous prime is 61043687. The next prime is 61043779. The reversal of 61043699 is 99634016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61043699 - 2⁴ = 61043683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61043669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30521849 + 30521850.

It is an arithmetic number, because the mean of its divisors is an integer number (30521850).

Almost surely, 2^61043699 is an apocalyptic number.

61043699 is a deficient number, since it is larger than the sum of its proper divisors (1).

61043699 is an equidigital number, since it uses as much as digits as its factorization.

61043699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 61043699 is about 7813.0467168704. The cubic root of 61043699 is about 393.7436964137.

The spelling of 61043699 in words is "sixty-one million, forty-three thousand, six hundred ninety-nine".