649004706 has 60 divisors (see below), whose sum is σ = 1640551302. Its totient is φ = 185417568.

The previous prime is 649004687. The next prime is 649004711. The reversal of 649004706 is 607400946.

649004706 is a `hidden beast` number, since 649 + 0 + 0 + 4 + 7 + 0 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 588305025 + 60699681 = 24255^2 + 7791^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 35710 + ... + 50726.

Almost surely, 2^649004706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649004706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (820275651).

649004706 is an abundant number, since it is smaller than the sum of its proper divisors (991546596).

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

649004706 is a wasteful number, since it uses less digits than its factorization.

649004706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15053 (or 15029 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 649004706 is about 25475.5707688758. The cubic root of 649004706 is about 865.7967448215.

The spelling of 649004706 in words is "six hundred forty-nine million, four thousand, seven hundred six".