945889403 has 4 divisors (see below), whose sum is σ = 945997248. Its totient is φ = 945781560.

The previous prime is 945889381. The next prime is 945889471. The reversal of 945889403 is 304988549.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304988549 = 271 ⋅1125419.

It is a cyclic number.

It is not a de Polignac number, because 945889403 - 2¹⁸ = 945627259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945889303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39476 + ... + 58737.

It is an arithmetic number, because the mean of its divisors is an integer number (236499312).

Almost surely, 2^945889403 is an apocalyptic number.

945889403 is a deficient number, since it is larger than the sum of its proper divisors (107845).

945889403 is an equidigital number, since it uses as much as digits as its factorization.

945889403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107844.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 945889403 is about 30755.3150365916. The cubic root of 945889403 is about 981.6276585545.

The spelling of 945889403 in words is "nine hundred forty-five million, eight hundred eighty-nine thousand, four hundred three".