64042893 has 48 divisors (see below), whose sum is σ = 104569920. Its totient is φ = 39004416.

The previous prime is 64042877. The next prime is 64042949. The reversal of 64042893 is 39824046.

It is a happy number.

64042893 is a `hidden beast` number, since 640 + 4 + 2 + 8 + 9 + 3 = 666.

It is not a de Polignac number, because 64042893 - 2⁴ = 64042877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64042813) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152638 + ... + 153056.

It is an arithmetic number, because the mean of its divisors is an integer number (2178540).

Almost surely, 2^64042893 is an apocalyptic number.

It is an amenable number.

64042893 is a deficient number, since it is larger than the sum of its proper divisors (40527027).

64042893 is a wasteful number, since it uses less digits than its factorization.

64042893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 64042893 is about 8002.6803634782. The cubic root of 64042893 is about 400.0893404609.

The spelling of 64042893 in words is "sixty-four million, forty-two thousand, eight hundred ninety-three".