650696943 has 16 divisors (see below), whose sum is σ = 949654496. Its totient is φ = 393863040.

The previous prime is 650696939. The next prime is 650696951. The reversal of 650696943 is 349696056.

It is a happy number.

It is not a de Polignac number, because 650696943 - 2² = 650696939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 650696892 and 650696901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650696923) 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 15 ways as a sum of consecutive naturals, for example, 134380 + ... + 139137.

It is an arithmetic number, because the mean of its divisors is an integer number (59353406).

Almost surely, 2^650696943 is an apocalyptic number.

650696943 is a deficient number, since it is larger than the sum of its proper divisors (298957553).

650696943 is a wasteful number, since it uses less digits than its factorization.

650696943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273594.

The product of its (nonzero) digits is 1049760, while the sum is 48.

The square root of 650696943 is about 25508.7620828609. The cubic root of 650696943 is about 866.5485943850.

The spelling of 650696943 in words is "six hundred fifty million, six hundred ninety-six thousand, nine hundred forty-three".