67441861 has 8 divisors (see below), whose sum is σ = 69512184. Its totient is φ = 65384640.

The previous prime is 67441859. The next prime is 67441883. The reversal of 67441861 is 16814476.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21622500 + 45819361 = 4650^2 + 6769^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 67441861 - 2¹ = 67441859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 67441861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67441831) 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, 7731 + ... + 13951.

It is an arithmetic number, because the mean of its divisors is an integer number (8689023).

Almost surely, 2^67441861 is an apocalyptic number.

It is an amenable number.

67441861 is a deficient number, since it is larger than the sum of its proper divisors (2070323).

67441861 is a wasteful number, since it uses less digits than its factorization.

67441861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6551.

The product of its digits is 32256, while the sum is 37.

The square root of 67441861 is about 8212.2993735007. The cubic root of 67441861 is about 407.0457100028.

The spelling of 67441861 in words is "sixty-seven million, four hundred forty-one thousand, eight hundred sixty-one".