2630857 has 2 divisors, whose sum is σ = 2630858. Its totient is φ = 2630856.

The previous prime is 2630843. The next prime is 2630861. The reversal of 2630857 is 7580362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2509056 + 121801 = 1584^2 + 349^2 .

It is a cyclic number.

It is not a de Polignac number, because 2630857 - 2⁷ = 2630729 is a prime.

It is not a weakly prime, because it can be changed into another prime (2630357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315428 + 1315429.

It is an arithmetic number, because the mean of its divisors is an integer number (1315429).

2^2630857 is an apocalyptic number.

It is an amenable number.

2630857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2630857 is an equidigital number, since it uses as much as digits as its factorization.

2630857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2630857 is about 1621.9916769207. The cubic root of 2630857 is about 138.0487295528.

The spelling of 2630857 in words is "two million, six hundred thirty thousand, eight hundred fifty-seven".