67973893 has 4 divisors (see below), whose sum is σ = 73202668. Its totient is φ = 62745120.

The previous prime is 67973833. The next prime is 67973903. The reversal of 67973893 is 39837976.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23444964 + 44528929 = 4842^2 + 6673^2 .

It is a cyclic number.

It is not a de Polignac number, because 67973893 - 2¹⁷ = 67842821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67973893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67973813) 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, 2614368 + ... + 2614393.

It is an arithmetic number, because the mean of its divisors is an integer number (18300667).

Almost surely, 2^67973893 is an apocalyptic number.

It is an amenable number.

67973893 is a deficient number, since it is larger than the sum of its proper divisors (5228775).

67973893 is a wasteful number, since it uses less digits than its factorization.

67973893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5228774.

The product of its digits is 1714608, while the sum is 52.

The square root of 67973893 is about 8244.6281298795. The cubic root of 67973893 is about 408.1132683242.

The spelling of 67973893 in words is "sixty-seven million, nine hundred seventy-three thousand, eight hundred ninety-three".