75421173 has 8 divisors (see below), whose sum is σ = 102459168. Its totient is φ = 49331984.

The previous prime is 75421153. The next prime is 75421201. The reversal of 75421173 is 37112457.

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 75421173 - 2⁹ = 75420661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75421173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75421153) 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, 237015 + ... + 237332.

It is an arithmetic number, because the mean of its divisors is an integer number (12807396).

Almost surely, 2^75421173 is an apocalyptic number.

It is an amenable number.

75421173 is a deficient number, since it is larger than the sum of its proper divisors (27037995).

75421173 is a wasteful number, since it uses less digits than its factorization.

75421173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474403.

The product of its digits is 5880, while the sum is 30.

The square root of 75421173 is about 8684.5364297699. The cubic root of 75421173 is about 422.5042619460.

The spelling of 75421173 in words is "seventy-five million, four hundred twenty-one thousand, one hundred seventy-three".