71716069 has 4 divisors (see below), whose sum is σ = 71752896. Its totient is φ = 71679244.

The previous prime is 71716039. The next prime is 71716103. The reversal of 71716069 is 96061717.

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 71716069 - 2¹¹ = 71714021 is a prime.

It is a super-2 number, since 2×71716069² = 10286389105625522, 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 (71716009) 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, 15319 + ... + 19444.

It is an arithmetic number, because the mean of its divisors is an integer number (17938224).

Almost surely, 2^71716069 is an apocalyptic number.

It is an amenable number.

71716069 is a deficient number, since it is larger than the sum of its proper divisors (36827).

71716069 is a wasteful number, since it uses less digits than its factorization.

71716069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36826.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 71716069 is about 8468.5340525973. The cubic root of 71716069 is about 415.4691920857.

The spelling of 71716069 in words is "seventy-one million, seven hundred sixteen thousand, sixty-nine".