64104431 has 2 divisors, whose sum is σ = 64104432. Its totient is φ = 64104430.

The previous prime is 64104421. The next prime is 64104451. The reversal of 64104431 is 13440146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64104431 - 2⁶ = 64104367 is a prime.

It is a super-2 number, since 2×64104431² = 8218756147667522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64104397 and 64104406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64104421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32052215 + 32052216.

It is an arithmetic number, because the mean of its divisors is an integer number (32052216).

Almost surely, 2^64104431 is an apocalyptic number.

64104431 is a deficient number, since it is larger than the sum of its proper divisors (1).

64104431 is an equidigital number, since it uses as much as digits as its factorization.

64104431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 64104431 is about 8006.5242771130. The cubic root of 64104431 is about 400.2174463546.

Adding to 64104431 its reverse (13440146), we get a palindrome (77544577).

The spelling of 64104431 in words is "sixty-four million, one hundred four thousand, four hundred thirty-one".