82857403 has 2 divisors, whose sum is σ = 82857404. Its totient is φ = 82857402.

The previous prime is 82857377. The next prime is 82857413. The reversal of 82857403 is 30475828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82857403 - 2²⁵ = 49302971 is a prime.

It is not a weakly prime, because it can be changed into another prime (82857413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41428701 + 41428702.

It is an arithmetic number, because the mean of its divisors is an integer number (41428702).

Almost surely, 2^82857403 is an apocalyptic number.

82857403 is a deficient number, since it is larger than the sum of its proper divisors (1).

82857403 is an equidigital number, since it uses as much as digits as its factorization.

82857403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 82857403 is about 9102.6041878135. The cubic root of 82857403 is about 435.9571174473.

The spelling of 82857403 in words is "eighty-two million, eight hundred fifty-seven thousand, four hundred three".