6961281 has 4 divisors (see below), whose sum is σ = 9281712. Its totient is φ = 4640852.

The previous prime is 6961271. The next prime is 6961289. The reversal of 6961281 is 1821696.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6961281 - 2⁷ = 6961153 is a prime.

It is a super-2 number, since 2×6961281² = 96918866321922, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (6961289) 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, 1160211 + ... + 1160216.

It is an arithmetic number, because the mean of its divisors is an integer number (2320428).

Almost surely, 2^6961281 is an apocalyptic number.

It is an amenable number.

6961281 is a deficient number, since it is larger than the sum of its proper divisors (2320431).

6961281 is a wasteful number, since it uses less digits than its factorization.

6961281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320430.

The product of its digits is 5184, while the sum is 33.

The square root of 6961281 is about 2638.4239613830. The cubic root of 6961281 is about 190.9397670145.

The spelling of 6961281 in words is "six million, nine hundred sixty-one thousand, two hundred eighty-one".