67894849 has 4 divisors (see below), whose sum is σ = 74067120. Its totient is φ = 61722580.

The previous prime is 67894831. The next prime is 67894861. The reversal of 67894849 is 94849876.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67894849 - 2¹¹ = 67892801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67894849.

It is not an unprimeable number, because it can be changed into a prime (67894949) 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 in 3 ways as a sum of consecutive naturals, for example, 3086119 + ... + 3086140.

It is an arithmetic number, because the mean of its divisors is an integer number (18516780).

Almost surely, 2^67894849 is an apocalyptic number.

It is an amenable number.

67894849 is a deficient number, since it is larger than the sum of its proper divisors (6172271).

67894849 is a wasteful number, since it uses less digits than its factorization.

67894849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172270.

The product of its digits is 3483648, while the sum is 55.

The square root of 67894849 is about 8239.8330686974. The cubic root of 67894849 is about 407.9550143436.

It can be divided in two parts, 67 and 894849, that added together give a square (894916 = 946²).

The spelling of 67894849 in words is "sixty-seven million, eight hundred ninety-four thousand, eight hundred forty-nine".