73781068 has 12 divisors (see below), whose sum is σ = 129207960. Its totient is φ = 36864512.

The previous prime is 73781053. The next prime is 73781069. The reversal of 73781068 is 86018737.

It is a self number, because there is not a number n which added to its sum of digits gives 73781068.

It is not an unprimeable number, because it can be changed into a prime (73781069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780 + ... + 12172.

It is an arithmetic number, because the mean of its divisors is an integer number (10767330).

Almost surely, 2^73781068 is an apocalyptic number.

It is an amenable number.

73781068 is a deficient number, since it is larger than the sum of its proper divisors (55426892).

73781068 is a wasteful number, since it uses less digits than its factorization.

73781068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13016 (or 13014 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 73781068 is about 8589.5906770928. The cubic root of 73781068 is about 419.4192047786.

The spelling of 73781068 in words is "seventy-three million, seven hundred eighty-one thousand, sixty-eight".