272631993 has 8 divisors (see below), whose sum is σ = 365393568. Its totient is φ = 180812544.

The previous prime is 272631971. The next prime is 272632037. The reversal of 272631993 is 399136272.

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

It is not a de Polignac number, because 272631993 - 2¹⁸ = 272369849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (272631493) 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, 234855 + ... + 236012.

It is an arithmetic number, because the mean of its divisors is an integer number (45674196).

Almost surely, 2^272631993 is an apocalyptic number.

It is an amenable number.

272631993 is a deficient number, since it is larger than the sum of its proper divisors (92761575).

272631993 is a wasteful number, since it uses less digits than its factorization.

272631993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471063.

The product of its digits is 122472, while the sum is 42.

The square root of 272631993 is about 16511.5714878990. The cubic root of 272631993 is about 648.4237887608.

The spelling of 272631993 in words is "two hundred seventy-two million, six hundred thirty-one thousand, nine hundred ninety-three".