75300421 has 8 divisors (see below), whose sum is σ = 86945600. Its totient is φ = 63877248.

The previous prime is 75300403. The next prime is 75300431. The reversal of 75300421 is 12400357.

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 75300421 - 2⁵ = 75300389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75300392 and 75300401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75300431) 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, 54771 + ... + 56128.

It is an arithmetic number, because the mean of its divisors is an integer number (10868200).

Almost surely, 2^75300421 is an apocalyptic number.

It is an amenable number.

75300421 is a deficient number, since it is larger than the sum of its proper divisors (11645179).

75300421 is a wasteful number, since it uses less digits than its factorization.

75300421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111003.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 75300421 is about 8677.5815179115. The cubic root of 75300421 is about 422.2786600175.

Adding to 75300421 its reverse (12400357), we get a palindrome (87700778).

The spelling of 75300421 in words is "seventy-five million, three hundred thousand, four hundred twenty-one".