1008857 has 2 divisors, whose sum is σ = 1008858. Its totient is φ = 1008856.

The previous prime is 1008853. The next prime is 1008859. The reversal of 1008857 is 7588001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1008016 + 841 = 1004^2 + 29^2 .

It is a cyclic number.

It is not a de Polignac number, because 1008857 - 2² = 1008853 is a prime.

Together with 1008859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1008851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504428 + 504429.

It is an arithmetic number, because the mean of its divisors is an integer number (504429).

2^1008857 is an apocalyptic number.

It is an amenable number.

1008857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1008857 is an equidigital number, since it uses as much as digits as its factorization.

1008857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 1008857 is about 1004.4187373800. The cubic root of 1008857 is about 100.2943659699.

The spelling of 1008857 in words is "one million, eight thousand, eight hundred fifty-seven".