67328401 has 12 divisors (see below), whose sum is σ = 81023220. Its totient is φ = 55718880.

The previous prime is 67328363. The next prime is 67328413. The reversal of 67328401 is 10482376.

It can be written as a sum of positive squares in 2 ways, for example, as 49688401 + 17640000 = 7049^2 + 4200^2 .

It is not a de Polignac number, because 67328401 - 2⁹ = 67327889 is a prime.

It is a super-2 number, since 2×67328401² = 9066227162433602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67328441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22270 + ... + 25111.

It is an arithmetic number, because the mean of its divisors is an integer number (6751935).

Almost surely, 2^67328401 is an apocalyptic number.

It is an amenable number.

67328401 is a deficient number, since it is larger than the sum of its proper divisors (13694819).

67328401 is a wasteful number, since it uses less digits than its factorization.

67328401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47424 (or 47417 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 67328401 is about 8205.3885343718. The cubic root of 67328401 is about 406.8173190672.

The spelling of 67328401 in words is "sixty-seven million, three hundred twenty-eight thousand, four hundred one".