64376081 has 16 divisors (see below), whose sum is σ = 80438400. Its totient is φ = 50052480.

The previous prime is 64376077. The next prime is 64376083. The reversal of 64376081 is 18067346.

64376081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64376081 - 2² = 64376077 is a prime.

It is a super-2 number, since 2×64376081² = 8288559609837122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64376083) 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 15 ways as a sum of consecutive naturals, for example, 60845 + ... + 61893.

It is an arithmetic number, because the mean of its divisors is an integer number (5027400).

Almost surely, 2^64376081 is an apocalyptic number.

It is an amenable number.

64376081 is a deficient number, since it is larger than the sum of its proper divisors (16062319).

64376081 is a wasteful number, since it uses less digits than its factorization.

64376081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 64376081 is about 8023.4706330864. The cubic root of 64376081 is about 400.7819723851.

The spelling of 64376081 in words is "sixty-four million, three hundred seventy-six thousand, eighty-one".