945676989 has 24 divisors (see below), whose sum is σ = 1400630400. Its totient is φ = 614565888.

The previous prime is 945676943. The next prime is 945676997. The reversal of 945676989 is 989676549.

It is a happy number.

945676989 is a `hidden beast` number, since 9 + 4 + 567 + 69 + 8 + 9 = 666.

It is not a de Polignac number, because 945676989 - 2⁷ = 945676861 is a prime.

It is a super-2 number, since 2×945676989² = 1788609935048212242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945676489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104362 + ... + 113060.

It is an arithmetic number, because the mean of its divisors is an integer number (58359600).

Almost surely, 2^945676989 is an apocalyptic number.

It is an amenable number.

945676989 is a deficient number, since it is larger than the sum of its proper divisors (454953411).

945676989 is a wasteful number, since it uses less digits than its factorization.

945676989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9009 (or 9006 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The square root of 945676989 is about 30751.8615534084. The cubic root of 945676989 is about 981.5541731953.

The spelling of 945676989 in words is "nine hundred forty-five million, six hundred seventy-six thousand, nine hundred eighty-nine".