67049871 has 16 divisors (see below), whose sum is σ = 104346624. Its totient is φ = 37498464.

The previous prime is 67049867. The next prime is 67049891. The reversal of 67049871 is 17894076.

It is not a de Polignac number, because 67049871 - 2² = 67049867 is a prime.

It is a super-2 number, since 2×67049871² = 8991370402233282, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67049831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32980 + ... + 34953.

It is an arithmetic number, because the mean of its divisors is an integer number (6521664).

Almost surely, 2^67049871 is an apocalyptic number.

67049871 is a deficient number, since it is larger than the sum of its proper divisors (37296753).

67049871 is a wasteful number, since it uses less digits than its factorization.

67049871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67990.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 67049871 is about 8188.3985613794. The cubic root of 67049871 is about 406.2555579200.

The spelling of 67049871 in words is "sixty-seven million, forty-nine thousand, eight hundred seventy-one".