71725337 has 4 divisors (see below), whose sum is σ = 73251456. Its totient is φ = 70199220.

The previous prime is 71725327. The next prime is 71725343. The reversal of 71725337 is 73352717.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71725337 - 2⁴ = 71725321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71725297 and 71725306.

It is not an unprimeable number, because it can be changed into a prime (71725307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762989 + ... + 763082.

It is an arithmetic number, because the mean of its divisors is an integer number (18312864).

Almost surely, 2^71725337 is an apocalyptic number.

It is an amenable number.

71725337 is a deficient number, since it is larger than the sum of its proper divisors (1526119).

71725337 is a wasteful number, since it uses less digits than its factorization.

71725337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526118.

The product of its digits is 30870, while the sum is 35.

The square root of 71725337 is about 8469.0812370646. The cubic root of 71725337 is about 415.4870885984.

The spelling of 71725337 in words is "seventy-one million, seven hundred twenty-five thousand, three hundred thirty-seven".