650246431 has 4 divisors (see below), whose sum is σ = 650669392. Its totient is φ = 649823472.

The previous prime is 650246417. The next prime is 650246459. The reversal of 650246431 is 134642056.

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 650246431 - 2¹¹ = 650244383 is a prime.

It is a super-2 number, since 2×650246431² = 845640842056475522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 650246393 and 650246402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650246461) 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 3 ways as a sum of consecutive naturals, for example, 209166 + ... + 212251.

It is an arithmetic number, because the mean of its divisors is an integer number (162667348).

Almost surely, 2^650246431 is an apocalyptic number.

650246431 is a deficient number, since it is larger than the sum of its proper divisors (422961).

650246431 is a wasteful number, since it uses less digits than its factorization.

650246431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422960.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 650246431 is about 25499.9300195118. The cubic root of 650246431 is about 866.3485623653.

Adding to 650246431 its reverse (134642056), we get a palindrome (784888487).

The spelling of 650246431 in words is "six hundred fifty million, two hundred forty-six thousand, four hundred thirty-one".