67711671 has 12 divisors (see below), whose sum is σ = 97888440. Its totient is φ = 45102960.

The previous prime is 67711669. The next prime is 67711691. The reversal of 67711671 is 17611776.

It is not a de Polignac number, because 67711671 - 2¹ = 67711669 is a prime.

It is a super-2 number, since 2×67711671² = 9169740779224482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67711691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11745 + ... + 16533.

It is an arithmetic number, because the mean of its divisors is an integer number (8157370).

Almost surely, 2^67711671 is an apocalyptic number.

67711671 is a deficient number, since it is larger than the sum of its proper divisors (30176769).

67711671 is a wasteful number, since it uses less digits than its factorization.

67711671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366 (or 6363 counting only the distinct ones).

The product of its digits is 12348, while the sum is 36.

The square root of 67711671 is about 8228.7101662411. The cubic root of 67711671 is about 407.5878009712.

The spelling of 67711671 in words is "sixty-seven million, seven hundred eleven thousand, six hundred seventy-one".