67985995 has 64 divisors (see below), whose sum is σ = 107412480. Its totient is φ = 40089600.

The previous prime is 67985993. The next prime is 67986011. The reversal of 67985995 is 59958976.

It is not a de Polignac number, because 67985995 - 2¹ = 67985993 is a prime.

It is a super-2 number, since 2×67985995² = 9244191032280050, which contains 22 as substring.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (67985993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 931279 + ... + 931351.

It is an arithmetic number, because the mean of its divisors is an integer number (1678320).

Almost surely, 2^67985995 is an apocalyptic number.

67985995 is a deficient number, since it is larger than the sum of its proper divisors (39426485).

67985995 is a wasteful number, since it uses less digits than its factorization.

67985995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196.

The product of its digits is 6123600, while the sum is 58.

The square root of 67985995 is about 8245.3620296504. The cubic root of 67985995 is about 408.1374869052.

The spelling of 67985995 in words is "sixty-seven million, nine hundred eighty-five thousand, nine hundred ninety-five".