491073443 has 16 divisors (see below), whose sum is σ = 592440000. Its totient is φ = 406397376.

The previous prime is 491073419. The next prime is 491073467. The reversal of 491073443 is 344370194.

It is an interprime number because it is at equal distance from previous prime (491073419) and next prime (491073467).

It is not a de Polignac number, because 491073443 - 2⁶ = 491073379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491073493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14738 + ... + 34631.

It is an arithmetic number, because the mean of its divisors is an integer number (37027500).

Almost surely, 2^491073443 is an apocalyptic number.

491073443 is a deficient number, since it is larger than the sum of its proper divisors (101366557).

491073443 is an equidigital number, since it uses as much as digits as its factorization.

491073443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49419 (or 49405 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 491073443 is about 22160.1769622898. The cubic root of 491073443 is about 788.9487930493.

The spelling of 491073443 in words is "four hundred ninety-one million, seventy-three thousand, four hundred forty-three".