67000073 has 16 divisors (see below), whose sum is σ = 78402816. Its totient is φ = 56071680.

The previous prime is 67000069. The next prime is 67000091. The reversal of 67000073 is 37000076.

It is not a de Polignac number, because 67000073 - 2² = 67000069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67000033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55565 + ... + 56757.

It is an arithmetic number, because the mean of its divisors is an integer number (4900176).

Almost surely, 2^67000073 is an apocalyptic number.

It is an amenable number.

67000073 is a deficient number, since it is larger than the sum of its proper divisors (11402743).

67000073 is a wasteful number, since it uses less digits than its factorization.

67000073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 67000073 is about 8185.3572310560. The cubic root of 67000073 is about 406.1549575535.

The spelling of 67000073 in words is "sixty-seven million, seventy-three", and thus it is an aban number and an uban number.