67893987 has 8 divisors (see below), whose sum is σ = 103457536. Its totient is φ = 38796552.

The previous prime is 67893977. The next prime is 67893997. The reversal of 67893987 is 78939876.

It is an interprime number because it is at equal distance from previous prime (67893977) and next prime (67893997).

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

It is not a de Polignac number, because 67893987 - 2¹⁶ = 67828451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67893977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616503 + ... + 1616544.

It is an arithmetic number, because the mean of its divisors is an integer number (12932192).

Almost surely, 2^67893987 is an apocalyptic number.

67893987 is a deficient number, since it is larger than the sum of its proper divisors (35563549).

67893987 is a wasteful number, since it uses less digits than its factorization.

67893987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233057.

The product of its digits is 4572288, while the sum is 57.

The square root of 67893987 is about 8239.7807616465. The cubic root of 67893987 is about 407.9532878566.

The spelling of 67893987 in words is "sixty-seven million, eight hundred ninety-three thousand, nine hundred eighty-seven".