707081281 has 3 divisors (see below), whose sum is σ = 707107873. Its totient is φ = 707054690.

The previous prime is 707081251. The next prime is 707081327. The reversal of 707081281 is 182180707.

The square root of 707081281 is 26591.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 182180707 = 31 ⋅5876797.

It is not a de Polignac number, because 707081281 - 2¹³ = 707073089 is a prime.

It is a super-2 number, since 2×707081281² = 999927875881201922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (707081231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 13296 + ... + 39886.

Almost surely, 2^707081281 is an apocalyptic number.

707081281 is the 26591-st square number.

707081281 is the 13296-th centered octagonal number.

It is an amenable number.

707081281 is a deficient number, since it is larger than the sum of its proper divisors (26592).

707081281 is an frugal number, since it uses more digits than its factorization.

707081281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53182 (or 26591 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 34.

The cubic root of 707081281 is about 890.8880086043. Note that the first 3 decimals are identical.

The spelling of 707081281 in words is "seven hundred seven million, eighty-one thousand, two hundred eighty-one".