64842934 has 48 divisors (see below), whose sum is σ = 115948800. Its totient is φ = 27057888.

The previous prime is 64842893. The next prime is 64842937. The reversal of 64842934 is 43924846.

64842934 = T₁₈₀₄ + T₁₈₀₅ + ... + T₁₈₄₂.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64842937) 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 23 ways as a sum of consecutive naturals, for example, 147487 + ... + 147925.

It is an arithmetic number, because the mean of its divisors is an integer number (2415600).

Almost surely, 2^64842934 is an apocalyptic number.

64842934 is a deficient number, since it is larger than the sum of its proper divisors (51105866).

64842934 is a wasteful number, since it uses less digits than its factorization.

64842934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 496 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 64842934 is about 8052.5110369375. The cubic root of 64842934 is about 401.7484585955.

The spelling of 64842934 in words is "sixty-four million, eight hundred forty-two thousand, nine hundred thirty-four".