64643354 has 8 divisors (see below), whose sum is σ = 97067808. Its totient is φ = 32287420.

The previous prime is 64643351. The next prime is 64643357. The reversal of 64643354 is 45334646.

64643354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64643351) and next prime (64643357).

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

It is not an unprimeable number, because it can be changed into a prime (64643351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14702 + ... + 18585.

It is an arithmetic number, because the mean of its divisors is an integer number (12133476).

Almost surely, 2^64643354 is an apocalyptic number.

64643354 is a deficient number, since it is larger than the sum of its proper divisors (32424454).

64643354 is a wasteful number, since it uses less digits than its factorization.

64643354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34260.

The product of its digits is 103680, while the sum is 35.

The square root of 64643354 is about 8040.1090788621. The cubic root of 64643354 is about 401.3358545982.

The spelling of 64643354 in words is "sixty-four million, six hundred forty-three thousand, three hundred fifty-four".