9020857 has 2 divisors, whose sum is σ = 9020858. Its totient is φ = 9020856.

The previous prime is 9020831. The next prime is 9020873. The reversal of 9020857 is 7580209.

9020857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6661561 + 2359296 = 2581^2 + 1536^2 .

It is a cyclic number.

It is not a de Polignac number, because 9020857 - 2¹¹ = 9018809 is a prime.

It is a super-2 number, since 2×9020857² = 162751722028898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9020887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4510428 + 4510429.

It is an arithmetic number, because the mean of its divisors is an integer number (4510429).

Almost surely, 2^9020857 is an apocalyptic number.

It is an amenable number.

9020857 is a deficient number, since it is larger than the sum of its proper divisors (1).

9020857 is an equidigital number, since it uses as much as digits as its factorization.

9020857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 9020857 is about 3003.4741550411. The cubic root of 9020857 is about 208.1689409637.

The spelling of 9020857 in words is "nine million, twenty thousand, eight hundred fifty-seven".