64943854 has 8 divisors (see below), whose sum is σ = 97979400. Its totient is φ = 32284056.

The previous prime is 64943821. The next prime is 64943873. The reversal of 64943854 is 45834946.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 64943854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93504 + ... + 94195.

It is an arithmetic number, because the mean of its divisors is an integer number (12247425).

Almost surely, 2^64943854 is an apocalyptic number.

64943854 is a deficient number, since it is larger than the sum of its proper divisors (33035546).

64943854 is a wasteful number, since it uses less digits than its factorization.

64943854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187874.

The product of its digits is 414720, while the sum is 43.

The square root of 64943854 is about 8058.7749689391. The cubic root of 64943854 is about 401.9567744749.

The spelling of 64943854 in words is "sixty-four million, nine hundred forty-three thousand, eight hundred fifty-four".