75725347 has 4 divisors (see below), whose sum is σ = 77772016. Its totient is φ = 73678680.

The previous prime is 75725329. The next prime is 75725359. The reversal of 75725347 is 74352757.

It is a happy number.

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 75725347 - 2¹⁵ = 75692579 is a prime.

It is a super-3 number, since 3×75725347³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75735347) 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, 1023279 + ... + 1023352.

It is an arithmetic number, because the mean of its divisors is an integer number (19443004).

Almost surely, 2^75725347 is an apocalyptic number.

75725347 is a deficient number, since it is larger than the sum of its proper divisors (2046669).

75725347 is a wasteful number, since it uses less digits than its factorization.

75725347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046668.

The product of its digits is 205800, while the sum is 40.

The square root of 75725347 is about 8702.0311996683. The cubic root of 75725347 is about 423.0714874140.

The spelling of 75725347 in words is "seventy-five million, seven hundred twenty-five thousand, three hundred forty-seven".