67765608 has 48 divisors (see below), whose sum is σ = 186060420. Its totient is φ = 22277376.

The previous prime is 67765603. The next prime is 67765619. The reversal of 67765608 is 80656776.

It can be written as a sum of positive squares in 2 ways, for example, as 67272804 + 492804 = 8202^2 + 702^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (67765601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1191 + ... + 11702.

Almost surely, 2^67765608 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 67765608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93030210).

67765608 is an abundant number, since it is smaller than the sum of its proper divisors (118294812).

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

67765608 is a wasteful number, since it uses less digits than its factorization.

67765608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12978 (or 12971 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 67765608 is about 8231.9868804560. The cubic root of 67765608 is about 407.6959961474.

The spelling of 67765608 in words is "sixty-seven million, seven hundred sixty-five thousand, six hundred eight".