472709993 has 8 divisors (see below), whose sum is σ = 540377088. Its totient is φ = 405077184.

The previous prime is 472709989. The next prime is 472709999. The reversal of 472709993 is 399907274.

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

It is a cyclic number.

It is not a de Polignac number, because 472709993 - 2² = 472709989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (472709999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37505 + ... + 48497.

It is an arithmetic number, because the mean of its divisors is an integer number (67547136).

Almost surely, 2^472709993 is an apocalyptic number.

It is an amenable number.

472709993 is a deficient number, since it is larger than the sum of its proper divisors (67667095).

472709993 is a wasteful number, since it uses less digits than its factorization.

472709993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17143.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 472709993 is about 21741.8948806216. The cubic root of 472709993 is about 778.9894830999.

The spelling of 472709993 in words is "four hundred seventy-two million, seven hundred nine thousand, nine hundred ninety-three".