75738421 has 8 divisors (see below), whose sum is σ = 82691424. Its totient is φ = 68796720.

The previous prime is 75738419. The next prime is 75738433. The reversal of 75738421 is 12483757.

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 75738421 - 2¹ = 75738419 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 (75738461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17731 + ... + 21583.

It is an arithmetic number, because the mean of its divisors is an integer number (10336428).

Almost surely, 2^75738421 is an apocalyptic number.

It is an amenable number.

75738421 is a deficient number, since it is larger than the sum of its proper divisors (6953003).

75738421 is a wasteful number, since it uses less digits than its factorization.

75738421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5651.

The product of its digits is 47040, while the sum is 37.

The square root of 75738421 is about 8702.7823711730. The cubic root of 75738421 is about 423.0958338121.

The spelling of 75738421 in words is "seventy-five million, seven hundred thirty-eight thousand, four hundred twenty-one".