61884899 has 2 divisors, whose sum is σ = 61884900. Its totient is φ = 61884898.

The previous prime is 61884877. The next prime is 61884971. The reversal of 61884899 is 99848816.

61884899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61884899 - 2¹² = 61880803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61884899.

It is not a weakly prime, because it can be changed into another prime (61884839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30942449 + 30942450.

It is an arithmetic number, because the mean of its divisors is an integer number (30942450).

Almost surely, 2^61884899 is an apocalyptic number.

61884899 is a deficient number, since it is larger than the sum of its proper divisors (1).

61884899 is an equidigital number, since it uses as much as digits as its factorization.

61884899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 995328, while the sum is 53.

The square root of 61884899 is about 7866.6955578566. The cubic root of 61884899 is about 395.5440859775.

The spelling of 61884899 in words is "sixty-one million, eight hundred eighty-four thousand, eight hundred ninety-nine".