75394047 has 8 divisors (see below), whose sum is σ = 100621744. Its totient is φ = 50214528.

The previous prime is 75394027. The next prime is 75394051. The reversal of 75394047 is 74049357.

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

It is not a de Polignac number, because 75394047 - 2¹⁴ = 75377663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75393996 and 75394014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75394027) 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, 8218 + ... + 14775.

It is an arithmetic number, because the mean of its divisors is an integer number (12577718).

Almost surely, 2^75394047 is an apocalyptic number.

75394047 is a deficient number, since it is larger than the sum of its proper divisors (25227697).

75394047 is a wasteful number, since it uses less digits than its factorization.

75394047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24089.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 75394047 is about 8682.9745479300. The cubic root of 75394047 is about 422.4536032055.

The spelling of 75394047 in words is "seventy-five million, three hundred ninety-four thousand, forty-seven".