473607991 has 2 divisors, whose sum is σ = 473607992. Its totient is φ = 473607990.

The previous prime is 473607989. The next prime is 473608067. The reversal of 473607991 is 199706374.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 473607991 - 2¹ = 473607989 is a prime.

Together with 473607989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (473607931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236803995 + 236803996.

It is an arithmetic number, because the mean of its divisors is an integer number (236803996).

Almost surely, 2^473607991 is an apocalyptic number.

473607991 is a deficient number, since it is larger than the sum of its proper divisors (1).

473607991 is an equidigital number, since it uses as much as digits as its factorization.

473607991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 473607991 is about 21762.5364100787. The cubic root of 473607991 is about 779.4824481407.

The spelling of 473607991 in words is "four hundred seventy-three million, six hundred seven thousand, nine hundred ninety-one".