64834893 has 12 divisors (see below), whose sum is σ = 93841020. Its totient is φ = 43135296.

The previous prime is 64834879. The next prime is 64834901. The reversal of 64834893 is 39843846.

It can be written as a sum of positive squares in 2 ways, for example, as 39463524 + 25371369 = 6282^2 + 5037^2 .

It is not a de Polignac number, because 64834893 - 2²⁴ = 48057677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64834823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2496 + ... + 11657.

It is an arithmetic number, because the mean of its divisors is an integer number (7820085).

Almost surely, 2^64834893 is an apocalyptic number.

It is an amenable number.

64834893 is a deficient number, since it is larger than the sum of its proper divisors (29006127).

64834893 is a wasteful number, since it uses less digits than its factorization.

64834893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14668 (or 14665 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 64834893 is about 8052.0117362061. The cubic root of 64834893 is about 401.7318513226.

The spelling of 64834893 in words is "sixty-four million, eight hundred thirty-four thousand, eight hundred ninety-three".