67544434 has 8 divisors (see below), whose sum is σ = 107276508. Its totient is φ = 31785600.

The previous prime is 67544423. The next prime is 67544437. The reversal of 67544434 is 43444576.

It can be written as a sum of positive squares in 2 ways, for example, as 66341025 + 1203409 = 8145^2 + 1097^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 67544393 and 67544402.

It is not an unprimeable number, because it can be changed into a prime (67544437) 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 3 ways as a sum of consecutive naturals, for example, 993267 + ... + 993334.

Almost surely, 2^67544434 is an apocalyptic number.

67544434 is a deficient number, since it is larger than the sum of its proper divisors (39732074).

67544434 is a wasteful number, since it uses less digits than its factorization.

67544434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986620.

The product of its digits is 161280, while the sum is 37.

The square root of 67544434 is about 8218.5420848226. The cubic root of 67544434 is about 407.2519654347.

The spelling of 67544434 in words is "sixty-seven million, five hundred forty-four thousand, four hundred thirty-four".