946648989 has 48 divisors (see below), whose sum is σ = 1691027520. Its totient is φ = 501707520.

The previous prime is 946648987. The next prime is 946648991. The reversal of 946648989 is 989846649.

946648989 is a `hidden beast` number, since 94 + 66 + 489 + 8 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (946648987) and next prime (946648991).

It is not a de Polignac number, because 946648989 - 2¹ = 946648987 is a prime.

It is a super-2 number, since 2×946648989² = 1792288616749444242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (946648987) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5097 + ... + 43809.

It is an arithmetic number, because the mean of its divisors is an integer number (35229740).

Almost surely, 2^946648989 is an apocalyptic number.

946648989 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

946648989 is a deficient number, since it is larger than the sum of its proper divisors (744378531).

946648989 is a wasteful number, since it uses less digits than its factorization.

946648989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38762 (or 38759 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 63.

The square root of 946648989 is about 30767.6614158437. The cubic root of 946648989 is about 981.8903499865.

The spelling of 946648989 in words is "nine hundred forty-six million, six hundred forty-eight thousand, nine hundred eighty-nine".