10840657 has 2 divisors, whose sum is σ = 10840658. Its totient is φ = 10840656.

The previous prime is 10840649. The next prime is 10840663. The reversal of 10840657 is 75604801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10601536 + 239121 = 3256^2 + 489^2 .

It is a cyclic number.

It is not a de Polignac number, because 10840657 - 2³ = 10840649 is a prime.

It is not a weakly prime, because it can be changed into another prime (10840057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5420328 + 5420329.

It is an arithmetic number, because the mean of its divisors is an integer number (5420329).

Almost surely, 2^10840657 is an apocalyptic number.

It is an amenable number.

10840657 is a deficient number, since it is larger than the sum of its proper divisors (1).

10840657 is an equidigital number, since it uses as much as digits as its factorization.

10840657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 10840657 is about 3292.5152998885. The cubic root of 10840657 is about 221.3189160441.

The spelling of 10840657 in words is "ten million, eight hundred forty thousand, six hundred fifty-seven".