946646649 has 32 divisors (see below), whose sum is σ = 1599171840. Its totient is φ = 548280576.

The previous prime is 946646611. The next prime is 946646653.

946646649 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 946646649 - 2⁷ = 946646521 is a prime.

It is a super-2 number, since 2×946646649² = 1792279756125858402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 946646595 and 946646604.

It is not an unprimeable number, because it can be changed into a prime (946646689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73357 + ... + 85290.

It is an arithmetic number, because the mean of its divisors is an integer number (49974120).

Almost surely, 2^946646649 is an apocalyptic number.

It is an amenable number.

946646649 is a deficient number, since it is larger than the sum of its proper divisors (652525191).

946646649 is a wasteful number, since it uses less digits than its factorization.

946646649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158686 (or 158680 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 54.

The square root of 946646649 is about 30767.6233888807. The cubic root of 946646649 is about 981.8895409484.

The spelling of 946646649 in words is "nine hundred forty-six million, six hundred forty-six thousand, six hundred forty-nine".