67946994 has 48 divisors (see below), whose sum is σ = 156711672. Its totient is φ = 21202944.

The previous prime is 67946981. The next prime is 67946999. The reversal of 67946994 is 49964976.

It can be written as a sum of positive squares in 4 ways, for example, as 55308969 + 12638025 = 7437^2 + 3555^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67946994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67946999) 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, 70822 + ... + 71774.

Almost surely, 2^67946994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67946994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78355836).

67946994 is an abundant number, since it is smaller than the sum of its proper divisors (88764678).

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

67946994 is a wasteful number, since it uses less digits than its factorization.

67946994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211 (or 1208 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 67946994 is about 8242.9966638353. The cubic root of 67946994 is about 408.0594276181.

The spelling of 67946994 in words is "sixty-seven million, nine hundred forty-six thousand, nine hundred ninety-four".