64838249 has 8 divisors (see below), whose sum is σ = 74186688. Its totient is φ = 55511280.

The previous prime is 64838233. The next prime is 64838297. The reversal of 64838249 is 94283846.

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 64838249 - 2⁴ = 64838233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64838299) 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, 1739 + ... + 11519.

It is an arithmetic number, because the mean of its divisors is an integer number (9273336).

Almost surely, 2^64838249 is an apocalyptic number.

It is an amenable number.

64838249 is a deficient number, since it is larger than the sum of its proper divisors (9348439).

64838249 is an equidigital number, since it uses as much as digits as its factorization.

64838249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10735.

The product of its digits is 331776, while the sum is 44.

The square root of 64838249 is about 8052.2201286353. The cubic root of 64838249 is about 401.7387827180.

The spelling of 64838249 in words is "sixty-four million, eight hundred thirty-eight thousand, two hundred forty-nine".