64405035 has 12 divisors (see below), whose sum is σ = 111635472. Its totient is φ = 34349328.

The previous prime is 64405031. The next prime is 64405057. The reversal of 64405035 is 53050446.

It is not a de Polignac number, because 64405035 - 2² = 64405031 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (64405031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 715567 + ... + 715656.

It is an arithmetic number, because the mean of its divisors is an integer number (9302956).

Almost surely, 2^64405035 is an apocalyptic number.

64405035 is a deficient number, since it is larger than the sum of its proper divisors (47230437).

64405035 is a wasteful number, since it uses less digits than its factorization.

64405035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431234 (or 1431231 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 64405035 is about 8025.2747616515. The cubic root of 64405035 is about 400.8420490563.

The spelling of 64405035 in words is "sixty-four million, four hundred five thousand, thirty-five".