75946289 has 2 divisors, whose sum is σ = 75946290. Its totient is φ = 75946288.

The previous prime is 75946271. The next prime is 75946319. The reversal of 75946289 is 98264957.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66994225 + 8952064 = 8185^2 + 2992^2 .

It is a cyclic number.

It is not a de Polignac number, because 75946289 - 2⁸ = 75946033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75946229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37973144 + 37973145.

It is an arithmetic number, because the mean of its divisors is an integer number (37973145).

Almost surely, 2^75946289 is an apocalyptic number.

It is an amenable number.

75946289 is a deficient number, since it is larger than the sum of its proper divisors (1).

75946289 is an equidigital number, since it uses as much as digits as its factorization.

75946289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 50.

The square root of 75946289 is about 8714.7168054963. The cubic root of 75946289 is about 423.4825496811.

The spelling of 75946289 in words is "seventy-five million, nine hundred forty-six thousand, two hundred eighty-nine".