67743816 has 96 divisors (see below), whose sum is σ = 204459840. Its totient is φ = 18320256.

The previous prime is 67743811. The next prime is 67743847. The reversal of 67743816 is 61834776.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (67743811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60090 + ... + 61206.

It is an arithmetic number, because the mean of its divisors is an integer number (2129790).

Almost surely, 2^67743816 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 67743816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102229920).

67743816 is an abundant number, since it is smaller than the sum of its proper divisors (136716024).

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

67743816 is a wasteful number, since it uses less digits than its factorization.

67743816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171 (or 1148 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 67743816 is about 8230.6631567572. The cubic root of 67743816 is about 407.6522892980.

The spelling of 67743816 in words is "sixty-seven million, seven hundred forty-three thousand, eight hundred sixteen".