71752073 has 4 divisors (see below), whose sum is σ = 74066688. Its totient is φ = 69437460.

The previous prime is 71752069. The next prime is 71752081. The reversal of 71752073 is 37025717.

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: 37025717 = 1061 ⋅34897.

It is a cyclic number.

It is not a de Polignac number, because 71752073 - 2² = 71752069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71752013) 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, 1157261 + ... + 1157322.

It is an arithmetic number, because the mean of its divisors is an integer number (18516672).

Almost surely, 2^71752073 is an apocalyptic number.

It is an amenable number.

71752073 is a deficient number, since it is larger than the sum of its proper divisors (2314615).

71752073 is a wasteful number, since it uses less digits than its factorization.

71752073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314614.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 71752073 is about 8470.6595374859. The cubic root of 71752073 is about 415.5387071910.

The spelling of 71752073 in words is "seventy-one million, seven hundred fifty-two thousand, seventy-three".