67903668 has 72 divisors (see below), whose sum is σ = 196926912. Its totient is φ = 19325952.

The previous prime is 67903607. The next prime is 67903679. The reversal of 67903668 is 86630976.

It is a super-2 number, since 2×67903668² = 9221816255708448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117396 + ... + 117972.

It is an arithmetic number, because the mean of its divisors is an integer number (2735096).

Almost surely, 2^67903668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67903668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98463456).

67903668 is an abundant number, since it is smaller than the sum of its proper divisors (129023244).

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

67903668 is a wasteful number, since it uses less digits than its factorization.

67903668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 67903668 is about 8240.3681956573. The cubic root of 67903668 is about 407.9726769477.

The spelling of 67903668 in words is "sixty-seven million, nine hundred three thousand, six hundred sixty-eight".