67320401 has 16 divisors (see below), whose sum is σ = 73483200. Its totient is φ = 61459200.

The previous prime is 67320389. The next prime is 67320419. The reversal of 67320401 is 10402376.

It is a cyclic number.

It is not a de Polignac number, because 67320401 - 2¹⁰ = 67319377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67320101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68846 + ... + 69816.

It is an arithmetic number, because the mean of its divisors is an integer number (4592700).

Almost surely, 2^67320401 is an apocalyptic number.

It is an amenable number.

67320401 is a deficient number, since it is larger than the sum of its proper divisors (6162799).

67320401 is a wasteful number, since it uses less digits than its factorization.

67320401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 67320401 is about 8204.9010353569. The cubic root of 67320401 is about 406.8012056717.

Adding to 67320401 its reverse (10402376), we get a palindrome (77722777).

The spelling of 67320401 in words is "sixty-seven million, three hundred twenty thousand, four hundred one".