75606645 has 8 divisors (see below), whose sum is σ = 120970656. Its totient is φ = 40323536.

The previous prime is 75606637. The next prime is 75606649. The reversal of 75606645 is 54660657.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75606645 - 2³ = 75606637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75606649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2520207 + ... + 2520236.

It is an arithmetic number, because the mean of its divisors is an integer number (15121332).

Almost surely, 2^75606645 is an apocalyptic number.

It is an amenable number.

75606645 is a deficient number, since it is larger than the sum of its proper divisors (45364011).

75606645 is a wasteful number, since it uses less digits than its factorization.

75606645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040451.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 75606645 is about 8695.2081631207. The cubic root of 75606645 is about 422.8503122647.

The spelling of 75606645 in words is "seventy-five million, six hundred six thousand, six hundred forty-five".