650399706 has 48 divisors (see below), whose sum is σ = 1594258848. Its totient is φ = 197089200.

The previous prime is 650399699. The next prime is 650399731. The reversal of 650399706 is 607993056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55485 + ... + 66176.

It is an arithmetic number, because the mean of its divisors is an integer number (33213726).

Almost surely, 2^650399706 is an apocalyptic number.

650399706 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

650399706 is an abundant number, since it is smaller than the sum of its proper divisors (943859142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650399706 is a wasteful number, since it uses less digits than its factorization.

650399706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121689 (or 121677 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 650399706 is about 25502.9352428304. The cubic root of 650399706 is about 866.4166284283.

The spelling of 650399706 in words is "six hundred fifty million, three hundred ninety-nine thousand, seven hundred six".