71752849 has 4 divisors (see below), whose sum is σ = 82003264. Its totient is φ = 61502436.

The previous prime is 71752843. The next prime is 71752859. The reversal of 71752849 is 94825717.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94825717 = 7 ⋅13546531.

It is a cyclic number.

It is not a de Polignac number, because 71752849 - 2²¹ = 69655697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71752843) 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, 5125197 + ... + 5125210.

It is an arithmetic number, because the mean of its divisors is an integer number (20500816).

Almost surely, 2^71752849 is an apocalyptic number.

It is an amenable number.

71752849 is a deficient number, since it is larger than the sum of its proper divisors (10250415).

71752849 is a wasteful number, since it uses less digits than its factorization.

71752849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10250414.

The product of its digits is 141120, while the sum is 43.

The square root of 71752849 is about 8470.7053425320. The cubic root of 71752849 is about 415.5402052052.

The spelling of 71752849 in words is "seventy-one million, seven hundred fifty-two thousand, eight hundred forty-nine".