75799049 has 2 divisors, whose sum is σ = 75799050. Its totient is φ = 75799048.

The previous prime is 75798991. The next prime is 75799081. The reversal of 75799049 is 94099757.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42159049 + 33640000 = 6493^2 + 5800^2 .

It is an emirp because it is prime and its reverse (94099757) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75799049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75798988 and 75799006.

It is not a weakly prime, because it can be changed into another prime (75799249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37899524 + 37899525.

It is an arithmetic number, because the mean of its divisors is an integer number (37899525).

Almost surely, 2^75799049 is an apocalyptic number.

It is an amenable number.

75799049 is a deficient number, since it is larger than the sum of its proper divisors (1).

75799049 is an equidigital number, since it uses as much as digits as its factorization.

75799049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 75799049 is about 8706.2649281997. The cubic root of 75799049 is about 423.2086986448.

The spelling of 75799049 in words is "seventy-five million, seven hundred ninety-nine thousand, forty-nine".