67386434 has 4 divisors (see below), whose sum is σ = 101079654. Its totient is φ = 33693216.

The previous prime is 67386433. The next prime is 67386443. The reversal of 67386434 is 43468376.

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

It can be written as a sum of positive squares in only one way, i.e., 36060025 + 31326409 = 6005^2 + 5597^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67386391 and 67386400.

It is not an unprimeable number, because it can be changed into a prime (67386433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16846607 + ... + 16846610.

Almost surely, 2^67386434 is an apocalyptic number.

67386434 is a deficient number, since it is larger than the sum of its proper divisors (33693220).

67386434 is a wasteful number, since it uses less digits than its factorization.

67386434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33693219.

The product of its digits is 290304, while the sum is 41.

The square root of 67386434 is about 8208.9240464265. The cubic root of 67386434 is about 406.9341694565.

The spelling of 67386434 in words is "sixty-seven million, three hundred eighty-six thousand, four hundred thirty-four".