64834399 has 24 divisors (see below), whose sum is σ = 77748000. Its totient is φ = 53887680.

The previous prime is 64834373. The next prime is 64834463. The reversal of 64834399 is 99343846.

It is not a de Polignac number, because 64834399 - 2⁹ = 64833887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64834339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325702 + ... + 325900.

It is an arithmetic number, because the mean of its divisors is an integer number (3239500).

Almost surely, 2^64834399 is an apocalyptic number.

64834399 is a deficient number, since it is larger than the sum of its proper divisors (12913601).

64834399 is a wasteful number, since it uses less digits than its factorization.

64834399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 376 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The square root of 64834399 is about 8051.9810605838. The cubic root of 64834399 is about 401.7308310076.

The spelling of 64834399 in words is "sixty-four million, eight hundred thirty-four thousand, three hundred ninety-nine".