75670849 has 2 divisors, whose sum is σ = 75670850. Its totient is φ = 75670848.

The previous prime is 75670769. The next prime is 75670853. The reversal of 75670849 is 94807657.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67650625 + 8020224 = 8225^2 + 2832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75670849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75670799 and 75670808.

It is not a weakly prime, because it can be changed into another prime (75670879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37835424 + 37835425.

It is an arithmetic number, because the mean of its divisors is an integer number (37835425).

Almost surely, 2^75670849 is an apocalyptic number.

It is an amenable number.

75670849 is a deficient number, since it is larger than the sum of its proper divisors (1).

75670849 is an equidigital number, since it uses as much as digits as its factorization.

75670849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 75670849 is about 8698.8992981871. The cubic root of 75670849 is about 422.9699710606.

The spelling of 75670849 in words is "seventy-five million, six hundred seventy thousand, eight hundred forty-nine".