75670739 has 2 divisors, whose sum is σ = 75670740. Its totient is φ = 75670738.

The previous prime is 75670729. The next prime is 75670769. The reversal of 75670739 is 93707657.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75670739 - 2¹⁶ = 75605203 is a prime.

It is a super-2 number, since 2×75670739² = 11452121481612242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75670739.

It is not a weakly prime, because it can be changed into another prime (75670729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37835369 + 37835370.

It is an arithmetic number, because the mean of its divisors is an integer number (37835370).

Almost surely, 2^75670739 is an apocalyptic number.

75670739 is a deficient number, since it is larger than the sum of its proper divisors (1).

75670739 is an equidigital number, since it uses as much as digits as its factorization.

75670739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 277830, while the sum is 44.

The square root of 75670739 is about 8698.8929755458. The cubic root of 75670739 is about 422.9697661084.

The spelling of 75670739 in words is "seventy-five million, six hundred seventy thousand, seven hundred thirty-nine".