706813281 has 12 divisors (see below), whose sum is σ = 1074687120. Its totient is φ = 446408280.

The previous prime is 706813271. The next prime is 706813343. The reversal of 706813281 is 182318607.

It is not a de Polignac number, because 706813281 - 2²² = 702618977 is a prime.

It is a super-2 number, since 2×706813281² = 999170028395969922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (706813271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2066535 + ... + 2066876.

It is an arithmetic number, because the mean of its divisors is an integer number (89557260).

Almost surely, 2^706813281 is an apocalyptic number.

It is an amenable number.

706813281 is a deficient number, since it is larger than the sum of its proper divisors (367873839).

706813281 is a wasteful number, since it uses less digits than its factorization.

706813281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133436 (or 4133433 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 706813281 is about 26585.9602233961. The cubic root of 706813281 is about 890.7754387278.

The spelling of 706813281 in words is "seven hundred six million, eight hundred thirteen thousand, two hundred eighty-one".