64442935 has 8 divisors (see below), whose sum is σ = 77456016. Its totient is φ = 51471360.

The previous prime is 64442933. The next prime is 64442981. The reversal of 64442935 is 53924446.

It is a happy number.

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

It is not a de Polignac number, because 64442935 - 2¹ = 64442933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64442894 and 64442903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64442933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6849 + ... + 13258.

It is an arithmetic number, because the mean of its divisors is an integer number (9682002).

Almost surely, 2^64442935 is an apocalyptic number.

64442935 is a deficient number, since it is larger than the sum of its proper divisors (13013081).

64442935 is a wasteful number, since it uses less digits than its factorization.

64442935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20753.

The product of its digits is 103680, while the sum is 37.

The square root of 64442935 is about 8027.6357042407. The cubic root of 64442935 is about 400.9206605845.

The spelling of 64442935 in words is "sixty-four million, four hundred forty-two thousand, nine hundred thirty-five".