473721999 has 8 divisors (see below), whose sum is σ = 639624960. Its totient is φ = 311816856.

The previous prime is 473721979. The next prime is 473722001. The reversal of 473721999 is 999127374.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 473721999 - 2⁹ = 473721487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (473721979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999177 + ... + 999650.

It is an arithmetic number, because the mean of its divisors is an integer number (79953120).

Almost surely, 2^473721999 is an apocalyptic number.

473721999 is a deficient number, since it is larger than the sum of its proper divisors (165902961).

473721999 is a wasteful number, since it uses less digits than its factorization.

473721999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998909.

The product of its digits is 857304, while the sum is 51.

The square root of 473721999 is about 21765.1556162597. The cubic root of 473721999 is about 779.5449893892.

The spelling of 473721999 in words is "four hundred seventy-three million, seven hundred twenty-one thousand, nine hundred ninety-nine".