841306261 has 4 divisors (see below), whose sum is σ = 842780224. Its totient is φ = 839832300.

The previous prime is 841306243. The next prime is 841306307. The reversal of 841306261 is 162603148.

It is a happy number.

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 841306261 - 2⁷ = 841306133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (841306061) 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, 736125 + ... + 737266.

It is an arithmetic number, because the mean of its divisors is an integer number (210695056).

Almost surely, 2^841306261 is an apocalyptic number.

It is an amenable number.

841306261 is a deficient number, since it is larger than the sum of its proper divisors (1473963).

841306261 is a wasteful number, since it uses less digits than its factorization.

841306261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473962.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 841306261 is about 29005.2798814285. The cubic root of 841306261 is about 944.0276332073.

The spelling of 841306261 in words is "eight hundred forty-one million, three hundred six thousand, two hundred sixty-one".