650280961 has 8 divisors (see below), whose sum is σ = 711136800. Its totient is φ = 589715040.

The previous prime is 650280907. The next prime is 650280973. The reversal of 650280961 is 169082056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 650280961 - 2¹⁷ = 650149889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 650280961.

It is not an unprimeable number, because it can be changed into a prime (650280461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67771 + ... + 76768.

It is an arithmetic number, because the mean of its divisors is an integer number (88892100).

It is a Proth number, since it is equal to 19845 ⋅ 2¹⁵ + 1 and 19845 < 2¹⁵.

Almost surely, 2^650280961 is an apocalyptic number.

It is an amenable number.

650280961 is a deficient number, since it is larger than the sum of its proper divisors (60855839).

650280961 is a wasteful number, since it uses less digits than its factorization.

650280961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144959.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 650280961 is about 25500.6070712052. The cubic root of 650280961 is about 866.3638973137.

The spelling of 650280961 in words is "six hundred fifty million, two hundred eighty thousand, nine hundred sixty-one".