67891946 has 4 divisors (see below), whose sum is σ = 101837922. Its totient is φ = 33945972.

The previous prime is 67891933. The next prime is 67891951. The reversal of 67891946 is 64919876.

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

It can be written as a sum of positive squares in only one way, i.e., 65205625 + 2686321 = 8075^2 + 1639^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67891894 and 67891903.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16972985 + ... + 16972988.

Almost surely, 2^67891946 is an apocalyptic number.

67891946 is a deficient number, since it is larger than the sum of its proper divisors (33945976).

67891946 is a wasteful number, since it uses less digits than its factorization.

67891946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33945975.

The product of its digits is 653184, while the sum is 50.

The square root of 67891946 is about 8239.6569103331. The cubic root of 67891946 is about 407.9491999099.

The spelling of 67891946 in words is "sixty-seven million, eight hundred ninety-one thousand, nine hundred forty-six".