75447701 has 12 divisors (see below), whose sum is σ = 88143660. Its totient is φ = 64391040.

The previous prime is 75447679. The next prime is 75447719. The reversal of 75447701 is 10774457.

It can be written as a sum of positive squares in 2 ways, for example, as 20702500 + 54745201 = 4550^2 + 7399^2 .

It is not a de Polignac number, because 75447701 - 2⁶ = 75447637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75447781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8615 + ... + 15003.

It is an arithmetic number, because the mean of its divisors is an integer number (7345305).

Almost surely, 2^75447701 is an apocalyptic number.

It is an amenable number.

75447701 is a deficient number, since it is larger than the sum of its proper divisors (12695959).

75447701 is a wasteful number, since it uses less digits than its factorization.

75447701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6644 (or 6637 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 35.

The square root of 75447701 is about 8686.0636078721. The cubic root of 75447701 is about 422.5537921543.

The spelling of 75447701 in words is "seventy-five million, four hundred forty-seven thousand, seven hundred one".