71726063 has 4 divisors (see below), whose sum is σ = 71880120. Its totient is φ = 71572008.

The previous prime is 71726041. The next prime is 71726071. The reversal of 71726063 is 36062717.

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 71726063 - 2¹⁰ = 71725039 is a prime.

It is a super-2 number, since 2×71726063² = 10289256226959938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71726003) 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, 76328 + ... + 77261.

It is an arithmetic number, because the mean of its divisors is an integer number (17970030).

Almost surely, 2^71726063 is an apocalyptic number.

71726063 is a deficient number, since it is larger than the sum of its proper divisors (154057).

71726063 is a wasteful number, since it uses less digits than its factorization.

71726063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154056.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 71726063 is about 8469.1240987483. The cubic root of 71726063 is about 415.4884904397.

The spelling of 71726063 in words is "seventy-one million, seven hundred twenty-six thousand, sixty-three".