650382987 has 4 divisors (see below), whose sum is σ = 867177320. Its totient is φ = 433588656.

The previous prime is 650382911. The next prime is 650382989. The reversal of 650382987 is 789283056.

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

It is not a de Polignac number, because 650382987 - 2²⁶ = 583274123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650382989) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 108397162 + ... + 108397167.

It is an arithmetic number, because the mean of its divisors is an integer number (216794330).

Almost surely, 2^650382987 is an apocalyptic number.

650382987 is a deficient number, since it is larger than the sum of its proper divisors (216794333).

650382987 is a wasteful number, since it uses less digits than its factorization.

650382987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216794332.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 650382987 is about 25502.6074549251. The cubic root of 650382987 is about 866.4092044071.

The spelling of 650382987 in words is "six hundred fifty million, three hundred eighty-two thousand, nine hundred eighty-seven".