67396401 has 32 divisors (see below), whose sum is σ = 106496000. Its totient is φ = 42002064.

The previous prime is 67396397. The next prime is 67396409. The reversal of 67396401 is 10469376.

67396401 is a `hidden beast` number, since 6 + 7 + 3 + 9 + 640 + 1 = 666.

It is not a de Polignac number, because 67396401 - 2² = 67396397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67396409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39696 + ... + 41358.

It is an arithmetic number, because the mean of its divisors is an integer number (3328000).

Almost surely, 2^67396401 is an apocalyptic number.

It is an amenable number.

67396401 is a deficient number, since it is larger than the sum of its proper divisors (39099599).

67396401 is a wasteful number, since it uses less digits than its factorization.

67396401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770 (or 1764 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 67396401 is about 8209.5311071949. The cubic root of 67396401 is about 406.9542314218.

Subtracting from 67396401 its reverse (10469376), we obtain a square (56927025 = 7545²).

The spelling of 67396401 in words is "sixty-seven million, three hundred ninety-six thousand, four hundred one".