75386669 has 2 divisors, whose sum is σ = 75386670. Its totient is φ = 75386668.

The previous prime is 75386629. The next prime is 75386677. The reversal of 75386669 is 96668357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75255625 + 131044 = 8675^2 + 362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75386669 is a prime.

It is a super-2 number, since 2×75386669² = 11366299725831122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75386609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37693334 + 37693335.

It is an arithmetic number, because the mean of its divisors is an integer number (37693335).

Almost surely, 2^75386669 is an apocalyptic number.

It is an amenable number.

75386669 is a deficient number, since it is larger than the sum of its proper divisors (1).

75386669 is an equidigital number, since it uses as much as digits as its factorization.

75386669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 50.

The square root of 75386669 is about 8682.5496831288. The cubic root of 75386669 is about 422.4398224342.

The spelling of 75386669 in words is "seventy-five million, three hundred eighty-six thousand, six hundred sixty-nine".