67206401 has 4 divisors (see below), whose sum is σ = 70743600. Its totient is φ = 63669204.

The previous prime is 67206383. The next prime is 67206407. The reversal of 67206401 is 10460276.

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 67206401 - 2¹⁰ = 67205377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67206407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1768571 + ... + 1768608.

It is an arithmetic number, because the mean of its divisors is an integer number (17685900).

Almost surely, 2^67206401 is an apocalyptic number.

It is an amenable number.

67206401 is a deficient number, since it is larger than the sum of its proper divisors (3537199).

67206401 is a wasteful number, since it uses less digits than its factorization.

67206401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537198.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 67206401 is about 8197.9510244939. The cubic root of 67206401 is about 406.5714509532.

Adding to 67206401 its reverse (10460276), we get a palindrome (77666677).

The spelling of 67206401 in words is "sixty-seven million, two hundred six thousand, four hundred one".