75392047 has 4 divisors (see below), whose sum is σ = 75418200. Its totient is φ = 75365896.

The previous prime is 75392017. The next prime is 75392069. The reversal of 75392047 is 74029357.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75392047 - 2¹¹ = 75389999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75391997 and 75392015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75392017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8128 + ... + 14725.

It is an arithmetic number, because the mean of its divisors is an integer number (18854550).

Almost surely, 2^75392047 is an apocalyptic number.

75392047 is a deficient number, since it is larger than the sum of its proper divisors (26153).

75392047 is a wasteful number, since it uses less digits than its factorization.

75392047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26152.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 75392047 is about 8682.8593792598. The cubic root of 75392047 is about 422.4498676556.

The spelling of 75392047 in words is "seventy-five million, three hundred ninety-two thousand, forty-seven".