64893119 has 4 divisors (see below), whose sum is σ = 66475920. Its totient is φ = 63310320.

The previous prime is 64893109. The next prime is 64893121. The reversal of 64893119 is 91139846.

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

It is a cyclic number.

It is not a de Polignac number, because 64893119 - 2¹⁶ = 64827583 is a prime.

It is a super-2 number, since 2×64893119² = 8422233787096322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1582759 = 64893119 / (6 + 4 + 8 + 9 + 3 + 1 + 1 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64893109) 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, 791339 + ... + 791420.

It is an arithmetic number, because the mean of its divisors is an integer number (16618980).

Almost surely, 2^64893119 is an apocalyptic number.

64893119 is a deficient number, since it is larger than the sum of its proper divisors (1582801).

64893119 is a wasteful number, since it uses less digits than its factorization.

64893119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582800.

The product of its digits is 46656, while the sum is 41.

The square root of 64893119 is about 8055.6265429822. The cubic root of 64893119 is about 401.8520758853.

The spelling of 64893119 in words is "sixty-four million, eight hundred ninety-three thousand, one hundred nineteen".