650343401 has 4 divisors (see below), whose sum is σ = 651026772. Its totient is φ = 649660032.

The previous prime is 650343373. The next prime is 650343403. The reversal of 650343401 is 104343056.

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

It can be written as a sum of positive squares in 2 ways, for example, as 261307225 + 389036176 = 16165^2 + 19724^2 .

It is a cyclic number.

It is not a de Polignac number, because 650343401 - 2²⁶ = 583234537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650343403) 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, 340256 + ... + 342161.

It is an arithmetic number, because the mean of its divisors is an integer number (162756693).

Almost surely, 2^650343401 is an apocalyptic number.

It is an amenable number.

650343401 is a deficient number, since it is larger than the sum of its proper divisors (683371).

650343401 is an equidigital number, since it uses as much as digits as its factorization.

650343401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683370.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 650343401 is about 25501.8313263969. The cubic root of 650343401 is about 866.3916258565.

Adding to 650343401 its reverse (104343056), we get a palindrome (754686457).

The spelling of 650343401 in words is "six hundred fifty million, three hundred forty-three thousand, four hundred one".