67768704 has 64 divisors (see below), whose sum is σ = 200022000. Its totient is φ = 22588416.

The previous prime is 67768703. The next prime is 67768709. The reversal of 67768704 is 40786776.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 67768704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67768703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6349 + ... + 13260.

Almost surely, 2^67768704 is an apocalyptic number.

67768704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

67768704 is an abundant number, since it is smaller than the sum of its proper divisors (132253296).

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

67768704 is a wasteful number, since it uses less digits than its factorization.

67768704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19632 (or 19614 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 67768704 is about 8232.1749252552. The cubic root of 67768704 is about 407.7022048405.

The spelling of 67768704 in words is "sixty-seven million, seven hundred sixty-eight thousand, seven hundred four".