650212439 has 4 divisors (see below), whose sum is σ = 650758656. Its totient is φ = 649666224.

The previous prime is 650212403. The next prime is 650212463. The reversal of 650212439 is 934212056.

It is a happy number.

650212439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 650212439 - 2²⁴ = 633435223 is a prime.

It is a super-3 number, since 3×650212439³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650212489) 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, 271319 + ... + 273704.

It is an arithmetic number, because the mean of its divisors is an integer number (162689664).

Almost surely, 2^650212439 is an apocalyptic number.

650212439 is a deficient number, since it is larger than the sum of its proper divisors (546217).

650212439 is a wasteful number, since it uses less digits than its factorization.

650212439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546216.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 650212439 is about 25499.2634991680. The cubic root of 650212439 is about 866.3334658152. Note that the first 3 decimals are identical.

The spelling of 650212439 in words is "six hundred fifty million, two hundred twelve thousand, four hundred thirty-nine".