64838893 has 8 divisors (see below), whose sum is σ = 74289600. Its totient is φ = 55435200.

The previous prime is 64838861. The next prime is 64838927. The reversal of 64838893 is 39883846.

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

It is a cyclic number.

It is not a de Polignac number, because 64838893 - 2⁵ = 64838861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64838593) 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, 8743 + ... + 14356.

It is an arithmetic number, because the mean of its divisors is an integer number (9286200).

Almost surely, 2^64838893 is an apocalyptic number.

It is an amenable number.

64838893 is a deficient number, since it is larger than the sum of its proper divisors (9450707).

64838893 is a wasteful number, since it uses less digits than its factorization.

64838893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23507.

The product of its digits is 995328, while the sum is 49.

The square root of 64838893 is about 8052.2601175074. The cubic root of 64838893 is about 401.7401127915.

It can be divided in two parts, 6483 and 8893, that added together give a square (15376 = 124²).

The spelling of 64838893 in words is "sixty-four million, eight hundred thirty-eight thousand, eight hundred ninety-three".