67639014 has 12 divisors (see below), whose sum is σ = 146551236. Its totient is φ = 22546332.

The previous prime is 67639009. The next prime is 67639027. The reversal of 67639014 is 41093676.

67639014 is a `hidden beast` number, since 6 + 7 + 639 + 0 + 14 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 67639014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1878844 + ... + 1878879.

It is an arithmetic number, because the mean of its divisors is an integer number (12212603).

Almost surely, 2^67639014 is an apocalyptic number.

67639014 is an abundant number, since it is smaller than the sum of its proper divisors (78912222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67639014 is a wasteful number, since it uses less digits than its factorization.

67639014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757731 (or 3757728 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 67639014 is about 8224.2941338452. The cubic root of 67639014 is about 407.4419634562.

The spelling of 67639014 in words is "sixty-seven million, six hundred thirty-nine thousand, fourteen".