650989215 has 12 divisors (see below), whose sum is σ = 1128381384. Its totient is φ = 347194224.

The previous prime is 650989189. The next prime is 650989223. The reversal of 650989215 is 512989056.

It is not a de Polignac number, because 650989215 - 2¹¹ = 650987167 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 14466427 = 650989215 / (6 + 5 + 0 + 9 + 8 + 9 + 2 + 1 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7233169 + ... + 7233258.

It is an arithmetic number, because the mean of its divisors is an integer number (94031782).

Almost surely, 2^650989215 is an apocalyptic number.

650989215 is a deficient number, since it is larger than the sum of its proper divisors (477392169).

650989215 is a wasteful number, since it uses less digits than its factorization.

650989215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14466438 (or 14466435 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 650989215 is about 25514.4902947325. The cubic root of 650989215 is about 866.6783168224.

The spelling of 650989215 in words is "six hundred fifty million, nine hundred eighty-nine thousand, two hundred fifteen".