75234921 has 8 divisors (see below), whose sum is σ = 102447744. Its totient is φ = 49089360.

The previous prime is 75234893. The next prime is 75234941. The reversal of 75234921 is 12943257.

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

It is not a de Polignac number, because 75234921 - 2¹⁷ = 75103849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75234941) 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, 266650 + ... + 266931.

It is an arithmetic number, because the mean of its divisors is an integer number (12805968).

Almost surely, 2^75234921 is an apocalyptic number.

It is an amenable number.

75234921 is a deficient number, since it is larger than the sum of its proper divisors (27212823).

75234921 is a wasteful number, since it uses less digits than its factorization.

75234921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533631.

The product of its digits is 15120, while the sum is 33.

The square root of 75234921 is about 8673.8066037928. The cubic root of 75234921 is about 422.1561849347.

The spelling of 75234921 in words is "seventy-five million, two hundred thirty-four thousand, nine hundred twenty-one".