67648068 has 48 divisors (see below), whose sum is σ = 181440000. Its totient is φ = 21770784.

The previous prime is 67648067. The next prime is 67648069. The reversal of 67648068 is 86084676.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (67648067) and next prime (67648069).

It is a super-2 number, since 2×67648068² = 9152522208265248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67648067) 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, 7668 + ... + 13931.

It is an arithmetic number, because the mean of its divisors is an integer number (3780000).

Almost surely, 2^67648068 is an apocalyptic number.

It is an amenable number.

67648068 is an abundant number, since it is smaller than the sum of its proper divisors (113791932).

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

67648068 is a wasteful number, since it uses less digits than its factorization.

67648068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21641 (or 21633 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 67648068 is about 8224.8445578017. The cubic root of 67648068 is about 407.4601423874.

The spelling of 67648068 in words is "sixty-seven million, six hundred forty-eight thousand, sixty-eight".