75664269 has 6 divisors (see below), whose sum is σ = 109292846. Its totient is φ = 50442840.

The previous prime is 75664249. The next prime is 75664279. The reversal of 75664269 is 96246657.

It can be written as a sum of positive squares in only one way, i.e., 73874025 + 1790244 = 8595^2 + 1338^2 .

It is not a de Polignac number, because 75664269 - 2¹² = 75660173 is a prime.

It is a super-2 number, since 2×75664269² = 11450163206608722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75664249) 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 in 5 ways as a sum of consecutive naturals, for example, 4203562 + ... + 4203579.

Almost surely, 2^75664269 is an apocalyptic number.

It is an amenable number.

75664269 is a deficient number, since it is larger than the sum of its proper divisors (33628577).

75664269 is a wasteful number, since it uses less digits than its factorization.

75664269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8407147 (or 8407144 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 75664269 is about 8698.5210811954. The cubic root of 75664269 is about 422.9577108437.

It can be divided in two parts, 756 and 64269, that added together give a square (65025 = 255²).

The spelling of 75664269 in words is "seventy-five million, six hundred sixty-four thousand, two hundred sixty-nine".