64349718 has 8 divisors (see below), whose sum is σ = 128699448. Its totient is φ = 21449904.

The previous prime is 64349717. The next prime is 64349723. The reversal of 64349718 is 81794346.

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

64349718 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64349718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64349711) 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, 5362471 + ... + 5362482.

It is an arithmetic number, because the mean of its divisors is an integer number (16087431).

Almost surely, 2^64349718 is an apocalyptic number.

64349718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64349718 is a wasteful number, since it uses less digits than its factorization.

64349718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10724958.

The product of its digits is 145152, while the sum is 42.

The square root of 64349718 is about 8021.8275972499. The cubic root of 64349718 is about 400.7272561117.

The spelling of 64349718 in words is "sixty-four million, three hundred forty-nine thousand, seven hundred eighteen".