75385406 has 4 divisors (see below), whose sum is σ = 113078112. Its totient is φ = 37692702.

The previous prime is 75385357. The next prime is 75385411. The reversal of 75385406 is 60458357.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60458357 = 2609 ⋅23173.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 75385406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18846350 + ... + 18846353.

It is an arithmetic number, because the mean of its divisors is an integer number (28269528).

Almost surely, 2^75385406 is an apocalyptic number.

75385406 is a deficient number, since it is larger than the sum of its proper divisors (37692706).

75385406 is a wasteful number, since it uses less digits than its factorization.

75385406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37692705.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 75385406 is about 8682.4769507324. The cubic root of 75385406 is about 422.4374632882.

The spelling of 75385406 in words is "seventy-five million, three hundred eighty-five thousand, four hundred six".