67100401 has 4 divisors (see below), whose sum is σ = 67451904. Its totient is φ = 66748900.

The previous prime is 67100389. The next prime is 67100447. The reversal of 67100401 is 10400176.

It is a happy number.

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 67100401 - 2⁷ = 67100273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67100101) 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, 175465 + ... + 175846.

It is an arithmetic number, because the mean of its divisors is an integer number (16862976).

Almost surely, 2^67100401 is an apocalyptic number.

It is an amenable number.

67100401 is a deficient number, since it is larger than the sum of its proper divisors (351503).

67100401 is a wasteful number, since it uses less digits than its factorization.

67100401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351502.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 67100401 is about 8191.4834431866. The cubic root of 67100401 is about 406.3575861487.

Adding to 67100401 its reverse (10400176), we get a palindrome (77500577).

The spelling of 67100401 in words is "sixty-seven million, one hundred thousand, four hundred one".