272664473 has 8 divisors (see below), whose sum is σ = 283486560. Its totient is φ = 262041120.

The previous prime is 272664451. The next prime is 272664503. The reversal of 272664473 is 374466272.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272664473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 272664473.

It is not an unprimeable number, because it can be changed into a prime (272660473) 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, 46883 + ... + 52376.

It is an arithmetic number, because the mean of its divisors is an integer number (35435820).

Almost surely, 2^272664473 is an apocalyptic number.

It is an amenable number.

272664473 is a deficient number, since it is larger than the sum of its proper divisors (10822087).

272664473 is an equidigital number, since it uses as much as digits as its factorization.

272664473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99367.

The product of its digits is 338688, while the sum is 41.

The square root of 272664473 is about 16512.5550112634. Note that the first 3 decimals coincide. The cubic root of 272664473 is about 648.4495377178.

The spelling of 272664473 in words is "two hundred seventy-two million, six hundred sixty-four thousand, four hundred seventy-three".