67743994 has 8 divisors (see below), whose sum is σ = 101742228. Its totient is φ = 33829920.

The previous prime is 67743989. The next prime is 67744007. The reversal of 67743994 is 49934776.

It can be written as a sum of positive squares in 2 ways, for example, as 64593369 + 3150625 = 8037^2 + 1775^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18987 + ... + 22270.

Almost surely, 2^67743994 is an apocalyptic number.

67743994 is a deficient number, since it is larger than the sum of its proper divisors (33998234).

67743994 is a wasteful number, since it uses less digits than its factorization.

67743994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42080.

The product of its digits is 1143072, while the sum is 49.

The square root of 67743994 is about 8230.6739699735. The cubic root of 67743994 is about 407.6526463394.

The spelling of 67743994 in words is "sixty-seven million, seven hundred forty-three thousand, nine hundred ninety-four".