841628257 has 8 divisors (see below), whose sum is σ = 844918272. Its totient is φ = 838345200.

The previous prime is 841628209. The next prime is 841628297. The reversal of 841628257 is 752826148.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-841628257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (841628297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397632 + ... + 399742.

It is an arithmetic number, because the mean of its divisors is an integer number (105614784).

Almost surely, 2^841628257 is an apocalyptic number.

It is an amenable number.

841628257 is a deficient number, since it is larger than the sum of its proper divisors (3290015).

841628257 is a wasteful number, since it uses less digits than its factorization.

841628257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479.

The product of its digits is 215040, while the sum is 43.

The square root of 841628257 is about 29010.8299950208. The cubic root of 841628257 is about 944.1480548119.

The spelling of 841628257 in words is "eight hundred forty-one million, six hundred twenty-eight thousand, two hundred fifty-seven".