649060946 has 16 divisors (see below), whose sum is σ = 984334680. Its totient is φ = 320956800.

The previous prime is 649060921. The next prime is 649060999.

It is a happy number.

649060946 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 643180321 + 5880625 = 25361^2 + 2425^2 .

It is a super-2 number, since 2×649060946² = 842560223244829832, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 649060897 and 649060906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324020 + ... + 326016.

Almost surely, 2^649060946 is an apocalyptic number.

649060946 is a deficient number, since it is larger than the sum of its proper divisors (335273734).

649060946 is a wasteful number, since it uses less digits than its factorization.

649060946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 649060946 is about 25476.6745475150. The cubic root of 649060946 is about 865.8217528592.

The spelling of 649060946 in words is "six hundred forty-nine million, sixty thousand, nine hundred forty-six".