61079999 has 2 divisors, whose sum is σ = 61080000. Its totient is φ = 61079998.

The previous prime is 61079989. The next prime is 61080001. The reversal of 61079999 is 99997016.

61079999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61079999 is a prime.

Together with 61080001, it forms a pair of twin primes.

It is a Chen prime.

61079999 is a modest number, since divided by 9999 gives 6107 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61079939) 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, 30539999 + 30540000.

It is an arithmetic number, because the mean of its divisors is an integer number (30540000).

Almost surely, 2^61079999 is an apocalyptic number.

61079999 is a deficient number, since it is larger than the sum of its proper divisors (1).

61079999 is an equidigital number, since it uses as much as digits as its factorization.

61079999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 50.

The square root of 61079999 is about 7815.3694090555. The cubic root of 61079999 is about 393.8217282949.

The spelling of 61079999 in words is "sixty-one million, seventy-nine thousand, nine hundred ninety-nine".