270781993 has 8 divisors (see below), whose sum is σ = 285465600. Its totient is φ = 256470240.

The previous prime is 270781963. The next prime is 270782027. The reversal of 270781993 is 399187072.

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 not a de Polignac number, because 270781993 - 2⁹ = 270781481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (270781963) 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, 91468 + ... + 94381.

It is an arithmetic number, because the mean of its divisors is an integer number (35683200).

Almost surely, 2^270781993 is an apocalyptic number.

It is an amenable number.

270781993 is a deficient number, since it is larger than the sum of its proper divisors (14683607).

270781993 is a wasteful number, since it uses less digits than its factorization.

270781993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185927.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 270781993 is about 16455.4548098799. The cubic root of 270781993 is about 646.9537881054.

The spelling of 270781993 in words is "two hundred seventy million, seven hundred eighty-one thousand, nine hundred ninety-three".