71627897 has 8 divisors (see below), whose sum is σ = 78546720. Its totient is φ = 64776960.

The previous prime is 71627879. The next prime is 71627903. The reversal of 71627897 is 79872617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71627897 - 2¹⁸ = 71365753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71627827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14747 + ... + 18992.

It is an arithmetic number, because the mean of its divisors is an integer number (9818340).

Almost surely, 2^71627897 is an apocalyptic number.

It is an amenable number.

71627897 is a deficient number, since it is larger than the sum of its proper divisors (6918823).

71627897 is a wasteful number, since it uses less digits than its factorization.

71627897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33943.

The product of its digits is 296352, while the sum is 47.

The square root of 71627897 is about 8463.3265918314. The cubic root of 71627897 is about 415.2988547485.

The spelling of 71627897 in words is "seventy-one million, six hundred twenty-seven thousand, eight hundred ninety-seven".