67961854 has 4 divisors (see below), whose sum is σ = 101942784. Its totient is φ = 33980926.

The previous prime is 67961833. The next prime is 67961857. The reversal of 67961854 is 45816976.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67961857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16990462 + ... + 16990465.

It is an arithmetic number, because the mean of its divisors is an integer number (25485696).

Almost surely, 2^67961854 is an apocalyptic number.

67961854 is a deficient number, since it is larger than the sum of its proper divisors (33980930).

67961854 is a wasteful number, since it uses less digits than its factorization.

67961854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33980929.

The product of its digits is 362880, while the sum is 46.

The square root of 67961854 is about 8243.8979857832. The cubic root of 67961854 is about 408.0891729669.

The spelling of 67961854 in words is "sixty-seven million, nine hundred sixty-one thousand, eight hundred fifty-four".