67086642 has 32 divisors (see below), whose sum is σ = 155289600. Its totient is φ = 18924048.

The previous prime is 67086637. The next prime is 67086647. The reversal of 67086642 is 24668076.

It is an interprime number because it is at equal distance from previous prime (67086637) and next prime (67086647).

It is a self number, because there is not a number n which added to its sum of digits gives 67086642.

It is not an unprimeable number, because it can be changed into a prime (67086647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6792 + ... + 13427.

It is an arithmetic number, because the mean of its divisors is an integer number (4852800).

Almost surely, 2^67086642 is an apocalyptic number.

67086642 is an abundant number, since it is smaller than the sum of its proper divisors (88202958).

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

67086642 is a wasteful number, since it uses less digits than its factorization.

67086642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20310.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 67086642 is about 8190.6435644582. The cubic root of 67086642 is about 406.3298095824.

The spelling of 67086642 in words is "sixty-seven million, eighty-six thousand, six hundred forty-two".