650974653 has 54 divisors (see below), whose sum is σ = 1113007194. Its totient is φ = 365565312.

The previous prime is 650974651. The next prime is 650974661. The reversal of 650974653 is 356479056.

It can be written as a sum of positive squares in 3 ways, for example, as 50381604 + 600593049 = 7098^2 + 24507^2 .

It is not a de Polignac number, because 650974653 - 2¹ = 650974651 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 650974599 and 650974608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650974651) 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 53 ways as a sum of consecutive naturals, for example, 2349951 + ... + 2350227.

Almost surely, 2^650974653 is an apocalyptic number.

650974653 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

650974653 is a deficient number, since it is larger than the sum of its proper divisors (462032541).

650974653 is a wasteful number, since it uses less digits than its factorization.

650974653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The square root of 650974653 is about 25514.2049258839. The cubic root of 650974653 is about 866.6718545219.

The spelling of 650974653 in words is "six hundred fifty million, nine hundred seventy-four thousand, six hundred fifty-three".