64623941 has 8 divisors (see below), whose sum is σ = 67031544. Its totient is φ = 62251200.

The previous prime is 64623893. The next prime is 64623943. The reversal of 64623941 is 14932646.

64623941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 21996100 + 42627841 = 4690^2 + 6529^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 64623941 - 2⁶ = 64623877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64623943) 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 7 ways as a sum of consecutive naturals, for example, 4910 + ... + 12383.

It is an arithmetic number, because the mean of its divisors is an integer number (8378943).

Almost surely, 2^64623941 is an apocalyptic number.

It is an amenable number.

64623941 is a deficient number, since it is larger than the sum of its proper divisors (2407603).

64623941 is a wasteful number, since it uses less digits than its factorization.

64623941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17431.

The product of its digits is 31104, while the sum is 35.

The square root of 64623941 is about 8038.9017284701. The cubic root of 64623941 is about 401.2956756135.

The spelling of 64623941 in words is "sixty-four million, six hundred twenty-three thousand, nine hundred forty-one".