64423311 has 8 divisors (see below), whose sum is σ = 86553984. Its totient is φ = 42620760.

The previous prime is 64423283. The next prime is 64423313. The reversal of 64423311 is 11332446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64423311 - 2¹¹ = 64421263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64423313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81571 + ... + 82356.

It is an arithmetic number, because the mean of its divisors is an integer number (10819248).

Almost surely, 2^64423311 is an apocalyptic number.

64423311 is a deficient number, since it is larger than the sum of its proper divisors (22130673).

64423311 is a wasteful number, since it uses less digits than its factorization.

64423311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164061.

The product of its digits is 1728, while the sum is 24.

The square root of 64423311 is about 8026.4133334884. The cubic root of 64423311 is about 400.8799606702.

Adding to 64423311 its reverse (11332446), we get a palindrome (75755757).

The spelling of 64423311 in words is "sixty-four million, four hundred twenty-three thousand, three hundred eleven".