650468987 has 16 divisors (see below), whose sum is σ = 756268800. Its totient is φ = 547970400.

The previous prime is 650468969. The next prime is 650468993. The reversal of 650468987 is 789864056.

It is a cyclic number.

It is not a de Polignac number, because 650468987 - 2¹² = 650464891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (650468387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94964 + ... + 101582.

It is an arithmetic number, because the mean of its divisors is an integer number (47266800).

Almost surely, 2^650468987 is an apocalyptic number.

650468987 is a deficient number, since it is larger than the sum of its proper divisors (105799813).

650468987 is a wasteful number, since it uses less digits than its factorization.

650468987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6866.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 650468987 is about 25504.2935012911. The cubic root of 650468987 is about 866.4473910905.

The spelling of 650468987 in words is "six hundred fifty million, four hundred sixty-eight thousand, nine hundred eighty-seven".