650064999 has 4 divisors (see below), whose sum is σ = 866753336. Its totient is φ = 433376664.

The previous prime is 650064979. The next prime is 650065001. The reversal of 650064999 is 999460056.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 650064999 - 2⁵ = 650064967 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 (650064929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108344164 + ... + 108344169.

It is an arithmetic number, because the mean of its divisors is an integer number (216688334).

Almost surely, 2^650064999 is an apocalyptic number.

650064999 is a deficient number, since it is larger than the sum of its proper divisors (216688337).

650064999 is a wasteful number, since it uses less digits than its factorization.

650064999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216688336.

The product of its (nonzero) digits is 524880, while the sum is 48.

The square root of 650064999 is about 25496.3722713644. The cubic root of 650064999 is about 866.2679785711.

The spelling of 650064999 in words is "six hundred fifty million, sixty-four thousand, nine hundred ninety-nine".