64790783 has 6 divisors (see below), whose sum is σ = 66411312. Its totient is φ = 63208880.

The previous prime is 64790777. The next prime is 64790801. The reversal of 64790783 is 38709746.

It is not a de Polignac number, because 64790783 - 2⁴ = 64790767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64790743) 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 5 ways as a sum of consecutive naturals, for example, 17591 + ... + 20952.

It is an arithmetic number, because the mean of its divisors is an integer number (11068552).

Almost surely, 2^64790783 is an apocalyptic number.

64790783 is a deficient number, since it is larger than the sum of its proper divisors (1620529).

64790783 is an equidigital number, since it uses as much as digits as its factorization.

64790783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38625 (or 38584 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 64790783 is about 8049.2722031250. The cubic root of 64790783 is about 401.6407254318.

The spelling of 64790783 in words is "sixty-four million, seven hundred ninety thousand, seven hundred eighty-three".