64838351 has 4 divisors (see below), whose sum is σ = 64937400. Its totient is φ = 64739304.

The previous prime is 64838299. The next prime is 64838359. The reversal of 64838351 is 15383846.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15383846 = 2 ⋅7691923.

It is a cyclic number.

It is not a de Polignac number, because 64838351 - 2²² = 60644047 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 (64838359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48536 + ... + 49853.

It is an arithmetic number, because the mean of its divisors is an integer number (16234350).

Almost surely, 2^64838351 is an apocalyptic number.

64838351 is a deficient number, since it is larger than the sum of its proper divisors (99049).

64838351 is an equidigital number, since it uses as much as digits as its factorization.

64838351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99048.

The product of its digits is 69120, while the sum is 38.

The square root of 64838351 is about 8052.2264622898. The cubic root of 64838351 is about 401.7389933824.

The spelling of 64838351 in words is "sixty-four million, eight hundred thirty-eight thousand, three hundred fifty-one".