64936494 has 24 divisors (see below), whose sum is σ = 160795440. Its totient is φ = 18553248.

The previous prime is 64936483. The next prime is 64936589. The reversal of 64936494 is 49463946.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 257559 + ... + 257810.

It is an arithmetic number, because the mean of its divisors is an integer number (6699810).

Almost surely, 2^64936494 is an apocalyptic number.

64936494 is an abundant number, since it is smaller than the sum of its proper divisors (95858946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64936494 is a wasteful number, since it uses less digits than its factorization.

64936494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515384 (or 515381 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 64936494 is about 8058.3183109133. The cubic root of 64936494 is about 401.9415894936.

The spelling of 64936494 in words is "sixty-four million, nine hundred thirty-six thousand, four hundred ninety-four".