841209957 has 12 divisors (see below), whose sum is σ = 1388664160. Its totient is φ = 480691368.

The previous prime is 841209937. The next prime is 841210021. The reversal of 841209957 is 759902148.

It is not a de Polignac number, because 841209957 - 2¹⁸ = 840947813 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 (841209907) 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, 6676207 + ... + 6676332.

Almost surely, 2^841209957 is an apocalyptic number.

It is an amenable number.

841209957 is a deficient number, since it is larger than the sum of its proper divisors (547454203).

841209957 is a wasteful number, since it uses less digits than its factorization.

841209957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13352552 (or 13352549 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 841209957 is about 29003.6197223726. The cubic root of 841209957 is about 943.9916110076.

The spelling of 841209957 in words is "eight hundred forty-one million, two hundred nine thousand, nine hundred fifty-seven".