272423761 has 4 divisors (see below), whose sum is σ = 273103524. Its totient is φ = 271744000.

The previous prime is 272423747. The next prime is 272423783. The reversal of 272423761 is 167324272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 221444161 + 50979600 = 14881^2 + 7140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272423761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272423741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339280 + ... + 340081.

It is an arithmetic number, because the mean of its divisors is an integer number (68275881).

Almost surely, 2^272423761 is an apocalyptic number.

It is an amenable number.

272423761 is a deficient number, since it is larger than the sum of its proper divisors (679763).

272423761 is an equidigital number, since it uses as much as digits as its factorization.

272423761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679762.

The product of its digits is 28224, while the sum is 34.

The square root of 272423761 is about 16505.2646449550. The cubic root of 272423761 is about 648.2586614384.

The spelling of 272423761 in words is "two hundred seventy-two million, four hundred twenty-three thousand, seven hundred sixty-one".