64807490 has 16 divisors (see below), whose sum is σ = 127258560. Its totient is φ = 23566320.

The previous prime is 64807481. The next prime is 64807517. The reversal of 64807490 is 9470846.

It is a happy number.

64807490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294470 + ... + 294689.

It is an arithmetic number, because the mean of its divisors is an integer number (7953660).

Almost surely, 2^64807490 is an apocalyptic number.

64807490 is a deficient number, since it is larger than the sum of its proper divisors (62451070).

64807490 is a wasteful number, since it uses less digits than its factorization.

64807490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589177.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 64807490 is about 8050.3099319219. The cubic root of 64807490 is about 401.6752449247.

The spelling of 64807490 in words is "sixty-four million, eight hundred seven thousand, four hundred ninety".