64126393 has 4 divisors (see below), whose sum is σ = 64142820. Its totient is φ = 64109968.

The previous prime is 64126379. The next prime is 64126411. The reversal of 64126393 is 39362146.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6927424 + 57198969 = 2632^2 + 7563^2 .

It is a cyclic number.

It is not a de Polignac number, because 64126393 - 2⁹ = 64125881 is a prime.

It is a super-2 number, since 2×64126393² = 8224388558380898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64126313) 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 in 3 ways as a sum of consecutive naturals, for example, 1371 + ... + 11407.

It is an arithmetic number, because the mean of its divisors is an integer number (16035705).

Almost surely, 2^64126393 is an apocalyptic number.

It is an amenable number.

64126393 is a deficient number, since it is larger than the sum of its proper divisors (16427).

64126393 is a wasteful number, since it uses less digits than its factorization.

64126393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16426.

The product of its digits is 23328, while the sum is 34.

The square root of 64126393 is about 8007.8956661535. The cubic root of 64126393 is about 400.2631455980.

The spelling of 64126393 in words is "sixty-four million, one hundred twenty-six thousand, three hundred ninety-three".