75038421 has 8 divisors (see below), whose sum is σ = 100258624. Its totient is φ = 49921920.

The previous prime is 75038419. The next prime is 75038423. The reversal of 75038421 is 12483057.

It is an interprime number because it is at equal distance from previous prime (75038419) and next prime (75038423).

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

It is not a de Polignac number, because 75038421 - 2¹ = 75038419 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 (75038423) 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 7 ways as a sum of consecutive naturals, for example, 24220 + ... + 27141.

It is an arithmetic number, because the mean of its divisors is an integer number (12532328).

Almost surely, 2^75038421 is an apocalyptic number.

It is an amenable number.

75038421 is a deficient number, since it is larger than the sum of its proper divisors (25220203).

75038421 is a wasteful number, since it uses less digits than its factorization.

75038421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51851.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 75038421 is about 8662.4719912967. The cubic root of 75038421 is about 421.7883326385.

The spelling of 75038421 in words is "seventy-five million, thirty-eight thousand, four hundred twenty-one".