473399991 has 16 divisors (see below), whose sum is σ = 738246400. Its totient is φ = 298989144.

The previous prime is 473399947. The next prime is 473399999. The reversal of 473399991 is 199993374.

It is not a de Polignac number, because 473399991 - 2¹³ = 473391799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (473399999) 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, 460891 + ... + 461916.

It is an arithmetic number, because the mean of its divisors is an integer number (46140400).

Almost surely, 2^473399991 is an apocalyptic number.

473399991 is a deficient number, since it is larger than the sum of its proper divisors (264846409).

473399991 is a wasteful number, since it uses less digits than its factorization.

473399991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922835 (or 922829 counting only the distinct ones).

The product of its digits is 1653372, while the sum is 54.

The square root of 473399991 is about 21757.7570305397. The cubic root of 473399991 is about 779.3683199353.

The spelling of 473399991 in words is "four hundred seventy-three million, three hundred ninety-nine thousand, nine hundred ninety-one".